Identifier
-
Mp00090:
Permutations
—cycle-as-one-line notation⟶
Permutations
Mp00072: Permutations —binary search tree: left to right⟶ Binary trees
Mp00010: Binary trees —to ordered tree: left child = left brother⟶ Ordered trees
St000167: Ordered trees ⟶ ℤ
Values
[1] => [1] => [.,.] => [[]] => 1
[1,2] => [1,2] => [.,[.,.]] => [[[]]] => 1
[2,1] => [1,2] => [.,[.,.]] => [[[]]] => 1
[1,2,3] => [1,2,3] => [.,[.,[.,.]]] => [[[[]]]] => 1
[1,3,2] => [1,2,3] => [.,[.,[.,.]]] => [[[[]]]] => 1
[2,1,3] => [1,2,3] => [.,[.,[.,.]]] => [[[[]]]] => 1
[2,3,1] => [1,2,3] => [.,[.,[.,.]]] => [[[[]]]] => 1
[3,1,2] => [1,3,2] => [.,[[.,.],.]] => [[[],[]]] => 2
[3,2,1] => [1,3,2] => [.,[[.,.],.]] => [[[],[]]] => 2
[1,2,3,4] => [1,2,3,4] => [.,[.,[.,[.,.]]]] => [[[[[]]]]] => 1
[1,2,4,3] => [1,2,3,4] => [.,[.,[.,[.,.]]]] => [[[[[]]]]] => 1
[1,3,2,4] => [1,2,3,4] => [.,[.,[.,[.,.]]]] => [[[[[]]]]] => 1
[1,3,4,2] => [1,2,3,4] => [.,[.,[.,[.,.]]]] => [[[[[]]]]] => 1
[1,4,2,3] => [1,2,4,3] => [.,[.,[[.,.],.]]] => [[[[],[]]]] => 2
[1,4,3,2] => [1,2,4,3] => [.,[.,[[.,.],.]]] => [[[[],[]]]] => 2
[2,1,3,4] => [1,2,3,4] => [.,[.,[.,[.,.]]]] => [[[[[]]]]] => 1
[2,1,4,3] => [1,2,3,4] => [.,[.,[.,[.,.]]]] => [[[[[]]]]] => 1
[2,3,1,4] => [1,2,3,4] => [.,[.,[.,[.,.]]]] => [[[[[]]]]] => 1
[2,3,4,1] => [1,2,3,4] => [.,[.,[.,[.,.]]]] => [[[[[]]]]] => 1
[2,4,1,3] => [1,2,4,3] => [.,[.,[[.,.],.]]] => [[[[],[]]]] => 2
[2,4,3,1] => [1,2,4,3] => [.,[.,[[.,.],.]]] => [[[[],[]]]] => 2
[3,1,2,4] => [1,3,2,4] => [.,[[.,.],[.,.]]] => [[[],[[]]]] => 2
[3,1,4,2] => [1,3,4,2] => [.,[[.,.],[.,.]]] => [[[],[[]]]] => 2
[3,2,1,4] => [1,3,2,4] => [.,[[.,.],[.,.]]] => [[[],[[]]]] => 2
[3,2,4,1] => [1,3,4,2] => [.,[[.,.],[.,.]]] => [[[],[[]]]] => 2
[3,4,1,2] => [1,3,2,4] => [.,[[.,.],[.,.]]] => [[[],[[]]]] => 2
[3,4,2,1] => [1,3,2,4] => [.,[[.,.],[.,.]]] => [[[],[[]]]] => 2
[4,1,2,3] => [1,4,3,2] => [.,[[[.,.],.],.]] => [[[],[],[]]] => 3
[4,1,3,2] => [1,4,2,3] => [.,[[.,[.,.]],.]] => [[[[]],[]]] => 2
[4,2,1,3] => [1,4,3,2] => [.,[[[.,.],.],.]] => [[[],[],[]]] => 3
[4,2,3,1] => [1,4,2,3] => [.,[[.,[.,.]],.]] => [[[[]],[]]] => 2
[4,3,1,2] => [1,4,2,3] => [.,[[.,[.,.]],.]] => [[[[]],[]]] => 2
[4,3,2,1] => [1,4,2,3] => [.,[[.,[.,.]],.]] => [[[[]],[]]] => 2
[1,2,3,4,5] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[1,2,3,5,4] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[1,2,4,3,5] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[1,2,4,5,3] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[1,2,5,3,4] => [1,2,3,5,4] => [.,[.,[.,[[.,.],.]]]] => [[[[[],[]]]]] => 2
[1,2,5,4,3] => [1,2,3,5,4] => [.,[.,[.,[[.,.],.]]]] => [[[[[],[]]]]] => 2
[1,3,2,4,5] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[1,3,2,5,4] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[1,3,4,2,5] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[1,3,4,5,2] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[1,3,5,2,4] => [1,2,3,5,4] => [.,[.,[.,[[.,.],.]]]] => [[[[[],[]]]]] => 2
[1,3,5,4,2] => [1,2,3,5,4] => [.,[.,[.,[[.,.],.]]]] => [[[[[],[]]]]] => 2
[1,4,2,3,5] => [1,2,4,3,5] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[1,4,2,5,3] => [1,2,4,5,3] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[1,4,3,2,5] => [1,2,4,3,5] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[1,4,3,5,2] => [1,2,4,5,3] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[1,4,5,2,3] => [1,2,4,3,5] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[1,4,5,3,2] => [1,2,4,3,5] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[1,5,2,3,4] => [1,2,5,4,3] => [.,[.,[[[.,.],.],.]]] => [[[[],[],[]]]] => 3
[1,5,2,4,3] => [1,2,5,3,4] => [.,[.,[[.,[.,.]],.]]] => [[[[[]],[]]]] => 2
[1,5,3,2,4] => [1,2,5,4,3] => [.,[.,[[[.,.],.],.]]] => [[[[],[],[]]]] => 3
[1,5,3,4,2] => [1,2,5,3,4] => [.,[.,[[.,[.,.]],.]]] => [[[[[]],[]]]] => 2
[1,5,4,2,3] => [1,2,5,3,4] => [.,[.,[[.,[.,.]],.]]] => [[[[[]],[]]]] => 2
[1,5,4,3,2] => [1,2,5,3,4] => [.,[.,[[.,[.,.]],.]]] => [[[[[]],[]]]] => 2
[2,1,3,4,5] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[2,1,3,5,4] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[2,1,4,3,5] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[2,1,4,5,3] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[2,1,5,3,4] => [1,2,3,5,4] => [.,[.,[.,[[.,.],.]]]] => [[[[[],[]]]]] => 2
[2,1,5,4,3] => [1,2,3,5,4] => [.,[.,[.,[[.,.],.]]]] => [[[[[],[]]]]] => 2
[2,3,1,4,5] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[2,3,1,5,4] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[2,3,4,1,5] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[2,3,4,5,1] => [1,2,3,4,5] => [.,[.,[.,[.,[.,.]]]]] => [[[[[[]]]]]] => 1
[2,3,5,1,4] => [1,2,3,5,4] => [.,[.,[.,[[.,.],.]]]] => [[[[[],[]]]]] => 2
[2,3,5,4,1] => [1,2,3,5,4] => [.,[.,[.,[[.,.],.]]]] => [[[[[],[]]]]] => 2
[2,4,1,3,5] => [1,2,4,3,5] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[2,4,1,5,3] => [1,2,4,5,3] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[2,4,3,1,5] => [1,2,4,3,5] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[2,4,3,5,1] => [1,2,4,5,3] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[2,4,5,1,3] => [1,2,4,3,5] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[2,4,5,3,1] => [1,2,4,3,5] => [.,[.,[[.,.],[.,.]]]] => [[[[],[[]]]]] => 2
[2,5,1,3,4] => [1,2,5,4,3] => [.,[.,[[[.,.],.],.]]] => [[[[],[],[]]]] => 3
[2,5,1,4,3] => [1,2,5,3,4] => [.,[.,[[.,[.,.]],.]]] => [[[[[]],[]]]] => 2
[2,5,3,1,4] => [1,2,5,4,3] => [.,[.,[[[.,.],.],.]]] => [[[[],[],[]]]] => 3
[2,5,3,4,1] => [1,2,5,3,4] => [.,[.,[[.,[.,.]],.]]] => [[[[[]],[]]]] => 2
[2,5,4,1,3] => [1,2,5,3,4] => [.,[.,[[.,[.,.]],.]]] => [[[[[]],[]]]] => 2
[2,5,4,3,1] => [1,2,5,3,4] => [.,[.,[[.,[.,.]],.]]] => [[[[[]],[]]]] => 2
[3,1,2,4,5] => [1,3,2,4,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,1,2,5,4] => [1,3,2,4,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,1,4,2,5] => [1,3,4,2,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,1,4,5,2] => [1,3,4,5,2] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,1,5,2,4] => [1,3,5,4,2] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,1,5,4,2] => [1,3,5,2,4] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,2,1,4,5] => [1,3,2,4,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,2,1,5,4] => [1,3,2,4,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,2,4,1,5] => [1,3,4,2,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,2,4,5,1] => [1,3,4,5,2] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,2,5,1,4] => [1,3,5,4,2] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,2,5,4,1] => [1,3,5,2,4] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,4,1,2,5] => [1,3,2,4,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,4,1,5,2] => [1,3,2,4,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,4,2,1,5] => [1,3,2,4,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,4,2,5,1] => [1,3,2,4,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,4,5,1,2] => [1,3,5,2,4] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,4,5,2,1] => [1,3,5,2,4] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,5,1,2,4] => [1,3,2,5,4] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,5,1,4,2] => [1,3,2,5,4] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
>>> Load all 5933 entries. <<<[3,5,2,1,4] => [1,3,2,5,4] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,5,2,4,1] => [1,3,2,5,4] => [.,[[.,.],[[.,.],.]]] => [[[],[[],[]]]] => 3
[3,5,4,1,2] => [1,3,4,2,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[3,5,4,2,1] => [1,3,4,2,5] => [.,[[.,.],[.,[.,.]]]] => [[[],[[[]]]]] => 2
[4,1,2,3,5] => [1,4,3,2,5] => [.,[[[.,.],.],[.,.]]] => [[[],[],[[]]]] => 3
[4,1,2,5,3] => [1,4,5,3,2] => [.,[[[.,.],.],[.,.]]] => [[[],[],[[]]]] => 3
[4,1,3,2,5] => [1,4,2,3,5] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,1,3,5,2] => [1,4,5,2,3] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,1,5,2,3] => [1,4,2,3,5] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,1,5,3,2] => [1,4,3,5,2] => [.,[[[.,.],.],[.,.]]] => [[[],[],[[]]]] => 3
[4,2,1,3,5] => [1,4,3,2,5] => [.,[[[.,.],.],[.,.]]] => [[[],[],[[]]]] => 3
[4,2,1,5,3] => [1,4,5,3,2] => [.,[[[.,.],.],[.,.]]] => [[[],[],[[]]]] => 3
[4,2,3,1,5] => [1,4,2,3,5] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,2,3,5,1] => [1,4,5,2,3] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,2,5,1,3] => [1,4,2,3,5] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,2,5,3,1] => [1,4,3,5,2] => [.,[[[.,.],.],[.,.]]] => [[[],[],[[]]]] => 3
[4,3,1,2,5] => [1,4,2,3,5] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,3,1,5,2] => [1,4,5,2,3] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,3,2,1,5] => [1,4,2,3,5] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,3,2,5,1] => [1,4,5,2,3] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,3,5,1,2] => [1,4,2,3,5] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,3,5,2,1] => [1,4,2,3,5] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,5,1,2,3] => [1,4,2,5,3] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,5,1,3,2] => [1,4,3,2,5] => [.,[[[.,.],.],[.,.]]] => [[[],[],[[]]]] => 3
[4,5,2,1,3] => [1,4,2,5,3] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,5,2,3,1] => [1,4,3,2,5] => [.,[[[.,.],.],[.,.]]] => [[[],[],[[]]]] => 3
[4,5,3,1,2] => [1,4,2,5,3] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[4,5,3,2,1] => [1,4,2,5,3] => [.,[[.,[.,.]],[.,.]]] => [[[[]],[[]]]] => 2
[5,1,2,3,4] => [1,5,4,3,2] => [.,[[[[.,.],.],.],.]] => [[[],[],[],[]]] => 4
[5,1,2,4,3] => [1,5,3,2,4] => [.,[[[.,.],[.,.]],.]] => [[[],[[]],[]]] => 3
[5,1,3,2,4] => [1,5,4,2,3] => [.,[[[.,[.,.]],.],.]] => [[[[]],[],[]]] => 3
[5,1,3,4,2] => [1,5,2,3,4] => [.,[[.,[.,[.,.]]],.]] => [[[[[]]],[]]] => 2
[5,1,4,2,3] => [1,5,3,4,2] => [.,[[[.,.],[.,.]],.]] => [[[],[[]],[]]] => 3
[5,1,4,3,2] => [1,5,2,3,4] => [.,[[.,[.,[.,.]]],.]] => [[[[[]]],[]]] => 2
[5,2,1,3,4] => [1,5,4,3,2] => [.,[[[[.,.],.],.],.]] => [[[],[],[],[]]] => 4
[5,2,1,4,3] => [1,5,3,2,4] => [.,[[[.,.],[.,.]],.]] => [[[],[[]],[]]] => 3
[5,2,3,1,4] => [1,5,4,2,3] => [.,[[[.,[.,.]],.],.]] => [[[[]],[],[]]] => 3
[5,2,3,4,1] => [1,5,2,3,4] => [.,[[.,[.,[.,.]]],.]] => [[[[[]]],[]]] => 2
[5,2,4,1,3] => [1,5,3,4,2] => [.,[[[.,.],[.,.]],.]] => [[[],[[]],[]]] => 3
[5,2,4,3,1] => [1,5,2,3,4] => [.,[[.,[.,[.,.]]],.]] => [[[[[]]],[]]] => 2
[5,3,1,2,4] => [1,5,4,2,3] => [.,[[[.,[.,.]],.],.]] => [[[[]],[],[]]] => 3
[5,3,1,4,2] => [1,5,2,3,4] => [.,[[.,[.,[.,.]]],.]] => [[[[[]]],[]]] => 2
[5,3,2,1,4] => [1,5,4,2,3] => [.,[[[.,[.,.]],.],.]] => [[[[]],[],[]]] => 3
[5,3,2,4,1] => [1,5,2,3,4] => [.,[[.,[.,[.,.]]],.]] => [[[[[]]],[]]] => 2
[5,3,4,1,2] => [1,5,2,3,4] => [.,[[.,[.,[.,.]]],.]] => [[[[[]]],[]]] => 2
[5,3,4,2,1] => [1,5,2,3,4] => [.,[[.,[.,[.,.]]],.]] => [[[[[]]],[]]] => 2
[5,4,1,2,3] => [1,5,3,2,4] => [.,[[[.,.],[.,.]],.]] => [[[],[[]],[]]] => 3
[5,4,1,3,2] => [1,5,2,4,3] => [.,[[.,[[.,.],.]],.]] => [[[[],[]],[]]] => 3
[5,4,2,1,3] => [1,5,3,2,4] => [.,[[[.,.],[.,.]],.]] => [[[],[[]],[]]] => 3
[5,4,2,3,1] => [1,5,2,4,3] => [.,[[.,[[.,.],.]],.]] => [[[[],[]],[]]] => 3
[5,4,3,1,2] => [1,5,2,4,3] => [.,[[.,[[.,.],.]],.]] => [[[[],[]],[]]] => 3
[5,4,3,2,1] => [1,5,2,4,3] => [.,[[.,[[.,.],.]],.]] => [[[[],[]],[]]] => 3
[1,2,3,4,5,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,2,3,4,6,5] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,2,3,5,4,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,2,3,5,6,4] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,2,3,6,4,5] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[1,2,3,6,5,4] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[1,2,4,3,5,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,2,4,3,6,5] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,2,4,5,3,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,2,4,5,6,3] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,2,4,6,3,5] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[1,2,4,6,5,3] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[1,2,5,3,4,6] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,2,5,3,6,4] => [1,2,3,5,6,4] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,2,5,4,3,6] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,2,5,4,6,3] => [1,2,3,5,6,4] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,2,5,6,3,4] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,2,5,6,4,3] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,2,6,3,4,5] => [1,2,3,6,5,4] => [.,[.,[.,[[[.,.],.],.]]]] => [[[[[],[],[]]]]] => 3
[1,2,6,3,5,4] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[1,2,6,4,3,5] => [1,2,3,6,5,4] => [.,[.,[.,[[[.,.],.],.]]]] => [[[[[],[],[]]]]] => 3
[1,2,6,4,5,3] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[1,2,6,5,3,4] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[1,2,6,5,4,3] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[1,3,2,4,5,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,3,2,4,6,5] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,3,2,5,4,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,3,2,5,6,4] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,3,2,6,4,5] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[1,3,2,6,5,4] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[1,3,4,2,5,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,3,4,2,6,5] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,3,4,5,2,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,3,4,5,6,2] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[1,3,4,6,2,5] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[1,3,4,6,5,2] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[1,3,5,2,4,6] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,3,5,2,6,4] => [1,2,3,5,6,4] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,3,5,4,2,6] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,3,5,4,6,2] => [1,2,3,5,6,4] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,3,5,6,2,4] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,3,5,6,4,2] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[1,3,6,2,4,5] => [1,2,3,6,5,4] => [.,[.,[.,[[[.,.],.],.]]]] => [[[[[],[],[]]]]] => 3
[1,3,6,2,5,4] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[1,3,6,4,2,5] => [1,2,3,6,5,4] => [.,[.,[.,[[[.,.],.],.]]]] => [[[[[],[],[]]]]] => 3
[1,3,6,4,5,2] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[1,3,6,5,2,4] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[1,3,6,5,4,2] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[1,4,2,3,5,6] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,2,3,6,5] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,2,5,3,6] => [1,2,4,5,3,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,2,5,6,3] => [1,2,4,5,6,3] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,2,6,3,5] => [1,2,4,6,5,3] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,2,6,5,3] => [1,2,4,6,3,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,3,2,5,6] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,3,2,6,5] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,3,5,2,6] => [1,2,4,5,3,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,3,5,6,2] => [1,2,4,5,6,3] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,3,6,2,5] => [1,2,4,6,5,3] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,3,6,5,2] => [1,2,4,6,3,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,5,2,3,6] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,5,2,6,3] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,5,3,2,6] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,5,3,6,2] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,5,6,2,3] => [1,2,4,6,3,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,5,6,3,2] => [1,2,4,6,3,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,6,2,3,5] => [1,2,4,3,6,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,6,2,5,3] => [1,2,4,3,6,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,6,3,2,5] => [1,2,4,3,6,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,6,3,5,2] => [1,2,4,3,6,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[1,4,6,5,2,3] => [1,2,4,5,3,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,4,6,5,3,2] => [1,2,4,5,3,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[1,5,2,3,4,6] => [1,2,5,4,3,6] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[1,5,2,3,6,4] => [1,2,5,6,4,3] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[1,5,2,4,3,6] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,2,4,6,3] => [1,2,5,6,3,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,2,6,3,4] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,2,6,4,3] => [1,2,5,4,6,3] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[1,5,3,2,4,6] => [1,2,5,4,3,6] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[1,5,3,2,6,4] => [1,2,5,6,4,3] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[1,5,3,4,2,6] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,3,4,6,2] => [1,2,5,6,3,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,3,6,2,4] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,3,6,4,2] => [1,2,5,4,6,3] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[1,5,4,2,3,6] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,4,2,6,3] => [1,2,5,6,3,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,4,3,2,6] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,4,3,6,2] => [1,2,5,6,3,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,4,6,2,3] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,4,6,3,2] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,6,2,3,4] => [1,2,5,3,6,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,6,2,4,3] => [1,2,5,4,3,6] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[1,5,6,3,2,4] => [1,2,5,3,6,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,6,3,4,2] => [1,2,5,4,3,6] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[1,5,6,4,2,3] => [1,2,5,3,6,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,5,6,4,3,2] => [1,2,5,3,6,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[1,6,2,3,4,5] => [1,2,6,5,4,3] => [.,[.,[[[[.,.],.],.],.]]] => [[[[],[],[],[]]]] => 4
[1,6,2,3,5,4] => [1,2,6,4,3,5] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[1,6,2,4,3,5] => [1,2,6,5,3,4] => [.,[.,[[[.,[.,.]],.],.]]] => [[[[[]],[],[]]]] => 3
[1,6,2,4,5,3] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[1,6,2,5,3,4] => [1,2,6,4,5,3] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[1,6,2,5,4,3] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[1,6,3,2,4,5] => [1,2,6,5,4,3] => [.,[.,[[[[.,.],.],.],.]]] => [[[[],[],[],[]]]] => 4
[1,6,3,2,5,4] => [1,2,6,4,3,5] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[1,6,3,4,2,5] => [1,2,6,5,3,4] => [.,[.,[[[.,[.,.]],.],.]]] => [[[[[]],[],[]]]] => 3
[1,6,3,4,5,2] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[1,6,3,5,2,4] => [1,2,6,4,5,3] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[1,6,3,5,4,2] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[1,6,4,2,3,5] => [1,2,6,5,3,4] => [.,[.,[[[.,[.,.]],.],.]]] => [[[[[]],[],[]]]] => 3
[1,6,4,2,5,3] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[1,6,4,3,2,5] => [1,2,6,5,3,4] => [.,[.,[[[.,[.,.]],.],.]]] => [[[[[]],[],[]]]] => 3
[1,6,4,3,5,2] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[1,6,4,5,2,3] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[1,6,4,5,3,2] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[1,6,5,2,3,4] => [1,2,6,4,3,5] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[1,6,5,2,4,3] => [1,2,6,3,5,4] => [.,[.,[[.,[[.,.],.]],.]]] => [[[[[],[]],[]]]] => 3
[1,6,5,3,2,4] => [1,2,6,4,3,5] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[1,6,5,3,4,2] => [1,2,6,3,5,4] => [.,[.,[[.,[[.,.],.]],.]]] => [[[[[],[]],[]]]] => 3
[1,6,5,4,2,3] => [1,2,6,3,5,4] => [.,[.,[[.,[[.,.],.]],.]]] => [[[[[],[]],[]]]] => 3
[1,6,5,4,3,2] => [1,2,6,3,5,4] => [.,[.,[[.,[[.,.],.]],.]]] => [[[[[],[]],[]]]] => 3
[2,1,3,4,5,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,1,3,4,6,5] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,1,3,5,4,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,1,3,5,6,4] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,1,3,6,4,5] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[2,1,3,6,5,4] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[2,1,4,3,5,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,1,4,3,6,5] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,1,4,5,3,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,1,4,5,6,3] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,1,4,6,3,5] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[2,1,4,6,5,3] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[2,1,5,3,4,6] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,1,5,3,6,4] => [1,2,3,5,6,4] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,1,5,4,3,6] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,1,5,4,6,3] => [1,2,3,5,6,4] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,1,5,6,3,4] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,1,5,6,4,3] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,1,6,3,4,5] => [1,2,3,6,5,4] => [.,[.,[.,[[[.,.],.],.]]]] => [[[[[],[],[]]]]] => 3
[2,1,6,3,5,4] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[2,1,6,4,3,5] => [1,2,3,6,5,4] => [.,[.,[.,[[[.,.],.],.]]]] => [[[[[],[],[]]]]] => 3
[2,1,6,4,5,3] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[2,1,6,5,3,4] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[2,1,6,5,4,3] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[2,3,1,4,5,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,3,1,4,6,5] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,3,1,5,4,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,3,1,5,6,4] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,3,1,6,4,5] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[2,3,1,6,5,4] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[2,3,4,1,5,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,3,4,1,6,5] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,3,4,5,1,6] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,3,4,5,6,1] => [1,2,3,4,5,6] => [.,[.,[.,[.,[.,[.,.]]]]]] => [[[[[[[]]]]]]] => 1
[2,3,4,6,1,5] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[2,3,4,6,5,1] => [1,2,3,4,6,5] => [.,[.,[.,[.,[[.,.],.]]]]] => [[[[[[],[]]]]]] => 2
[2,3,5,1,4,6] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,3,5,1,6,4] => [1,2,3,5,6,4] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,3,5,4,1,6] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,3,5,4,6,1] => [1,2,3,5,6,4] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,3,5,6,1,4] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,3,5,6,4,1] => [1,2,3,5,4,6] => [.,[.,[.,[[.,.],[.,.]]]]] => [[[[[],[[]]]]]] => 2
[2,3,6,1,4,5] => [1,2,3,6,5,4] => [.,[.,[.,[[[.,.],.],.]]]] => [[[[[],[],[]]]]] => 3
[2,3,6,1,5,4] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[2,3,6,4,1,5] => [1,2,3,6,5,4] => [.,[.,[.,[[[.,.],.],.]]]] => [[[[[],[],[]]]]] => 3
[2,3,6,4,5,1] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[2,3,6,5,1,4] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[2,3,6,5,4,1] => [1,2,3,6,4,5] => [.,[.,[.,[[.,[.,.]],.]]]] => [[[[[[]],[]]]]] => 2
[2,4,1,3,5,6] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,1,3,6,5] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,1,5,3,6] => [1,2,4,5,3,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,1,5,6,3] => [1,2,4,5,6,3] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,1,6,3,5] => [1,2,4,6,5,3] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,1,6,5,3] => [1,2,4,6,3,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,3,1,5,6] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,3,1,6,5] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,3,5,1,6] => [1,2,4,5,3,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,3,5,6,1] => [1,2,4,5,6,3] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,3,6,1,5] => [1,2,4,6,5,3] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,3,6,5,1] => [1,2,4,6,3,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,5,1,3,6] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,5,1,6,3] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,5,3,1,6] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,5,3,6,1] => [1,2,4,3,5,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,5,6,1,3] => [1,2,4,6,3,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,5,6,3,1] => [1,2,4,6,3,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,6,1,3,5] => [1,2,4,3,6,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,6,1,5,3] => [1,2,4,3,6,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,6,3,1,5] => [1,2,4,3,6,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,6,3,5,1] => [1,2,4,3,6,5] => [.,[.,[[.,.],[[.,.],.]]]] => [[[[],[[],[]]]]] => 3
[2,4,6,5,1,3] => [1,2,4,5,3,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,4,6,5,3,1] => [1,2,4,5,3,6] => [.,[.,[[.,.],[.,[.,.]]]]] => [[[[],[[[]]]]]] => 2
[2,5,1,3,4,6] => [1,2,5,4,3,6] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[2,5,1,3,6,4] => [1,2,5,6,4,3] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[2,5,1,4,3,6] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,1,4,6,3] => [1,2,5,6,3,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,1,6,3,4] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,1,6,4,3] => [1,2,5,4,6,3] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[2,5,3,1,4,6] => [1,2,5,4,3,6] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[2,5,3,1,6,4] => [1,2,5,6,4,3] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[2,5,3,4,1,6] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,3,4,6,1] => [1,2,5,6,3,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,3,6,1,4] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,3,6,4,1] => [1,2,5,4,6,3] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[2,5,4,1,3,6] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,4,1,6,3] => [1,2,5,6,3,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,4,3,1,6] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,4,3,6,1] => [1,2,5,6,3,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,4,6,1,3] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,4,6,3,1] => [1,2,5,3,4,6] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,6,1,3,4] => [1,2,5,3,6,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,6,1,4,3] => [1,2,5,4,3,6] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[2,5,6,3,1,4] => [1,2,5,3,6,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,6,3,4,1] => [1,2,5,4,3,6] => [.,[.,[[[.,.],.],[.,.]]]] => [[[[],[],[[]]]]] => 3
[2,5,6,4,1,3] => [1,2,5,3,6,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,5,6,4,3,1] => [1,2,5,3,6,4] => [.,[.,[[.,[.,.]],[.,.]]]] => [[[[[]],[[]]]]] => 2
[2,6,1,3,4,5] => [1,2,6,5,4,3] => [.,[.,[[[[.,.],.],.],.]]] => [[[[],[],[],[]]]] => 4
[2,6,1,3,5,4] => [1,2,6,4,3,5] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[2,6,1,4,3,5] => [1,2,6,5,3,4] => [.,[.,[[[.,[.,.]],.],.]]] => [[[[[]],[],[]]]] => 3
[2,6,1,4,5,3] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[2,6,1,5,3,4] => [1,2,6,4,5,3] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[2,6,1,5,4,3] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[2,6,3,1,4,5] => [1,2,6,5,4,3] => [.,[.,[[[[.,.],.],.],.]]] => [[[[],[],[],[]]]] => 4
[2,6,3,1,5,4] => [1,2,6,4,3,5] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[2,6,3,4,1,5] => [1,2,6,5,3,4] => [.,[.,[[[.,[.,.]],.],.]]] => [[[[[]],[],[]]]] => 3
[2,6,3,4,5,1] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[2,6,3,5,1,4] => [1,2,6,4,5,3] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[2,6,3,5,4,1] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[2,6,4,1,3,5] => [1,2,6,5,3,4] => [.,[.,[[[.,[.,.]],.],.]]] => [[[[[]],[],[]]]] => 3
[2,6,4,1,5,3] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[2,6,4,3,1,5] => [1,2,6,5,3,4] => [.,[.,[[[.,[.,.]],.],.]]] => [[[[[]],[],[]]]] => 3
[2,6,4,3,5,1] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[2,6,4,5,1,3] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[2,6,4,5,3,1] => [1,2,6,3,4,5] => [.,[.,[[.,[.,[.,.]]],.]]] => [[[[[[]]],[]]]] => 2
[2,6,5,1,3,4] => [1,2,6,4,3,5] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[2,6,5,1,4,3] => [1,2,6,3,5,4] => [.,[.,[[.,[[.,.],.]],.]]] => [[[[[],[]],[]]]] => 3
[2,6,5,3,1,4] => [1,2,6,4,3,5] => [.,[.,[[[.,.],[.,.]],.]]] => [[[[],[[]],[]]]] => 3
[2,6,5,3,4,1] => [1,2,6,3,5,4] => [.,[.,[[.,[[.,.],.]],.]]] => [[[[[],[]],[]]]] => 3
[2,6,5,4,1,3] => [1,2,6,3,5,4] => [.,[.,[[.,[[.,.],.]],.]]] => [[[[[],[]],[]]]] => 3
[2,6,5,4,3,1] => [1,2,6,3,5,4] => [.,[.,[[.,[[.,.],.]],.]]] => [[[[[],[]],[]]]] => 3
[3,1,2,4,5,6] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,1,2,4,6,5] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,1,2,5,4,6] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,1,2,5,6,4] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,1,2,6,4,5] => [1,3,2,4,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,1,2,6,5,4] => [1,3,2,4,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,1,4,2,5,6] => [1,3,4,2,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,1,4,2,6,5] => [1,3,4,2,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,1,4,5,2,6] => [1,3,4,5,2,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,1,4,5,6,2] => [1,3,4,5,6,2] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,1,4,6,2,5] => [1,3,4,6,5,2] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,1,4,6,5,2] => [1,3,4,6,2,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,1,5,2,4,6] => [1,3,5,4,2,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,1,5,2,6,4] => [1,3,5,6,4,2] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,1,5,4,2,6] => [1,3,5,2,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,1,5,4,6,2] => [1,3,5,6,2,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,1,5,6,2,4] => [1,3,5,2,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,1,5,6,4,2] => [1,3,5,4,6,2] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,1,6,2,4,5] => [1,3,6,5,4,2] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,1,6,2,5,4] => [1,3,6,4,2,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,1,6,4,2,5] => [1,3,6,5,2,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,1,6,4,5,2] => [1,3,6,2,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,1,6,5,2,4] => [1,3,6,4,5,2] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,1,6,5,4,2] => [1,3,6,2,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,2,1,4,5,6] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,2,1,4,6,5] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,2,1,5,4,6] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,2,1,5,6,4] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,2,1,6,4,5] => [1,3,2,4,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,2,1,6,5,4] => [1,3,2,4,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,2,4,1,5,6] => [1,3,4,2,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,2,4,1,6,5] => [1,3,4,2,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,2,4,5,1,6] => [1,3,4,5,2,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,2,4,5,6,1] => [1,3,4,5,6,2] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,2,4,6,1,5] => [1,3,4,6,5,2] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,2,4,6,5,1] => [1,3,4,6,2,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,2,5,1,4,6] => [1,3,5,4,2,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,2,5,1,6,4] => [1,3,5,6,4,2] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,2,5,4,1,6] => [1,3,5,2,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,2,5,4,6,1] => [1,3,5,6,2,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,2,5,6,1,4] => [1,3,5,2,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,2,5,6,4,1] => [1,3,5,4,6,2] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,2,6,1,4,5] => [1,3,6,5,4,2] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,2,6,1,5,4] => [1,3,6,4,2,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,2,6,4,1,5] => [1,3,6,5,2,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,2,6,4,5,1] => [1,3,6,2,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,2,6,5,1,4] => [1,3,6,4,5,2] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,2,6,5,4,1] => [1,3,6,2,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,4,1,2,5,6] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,4,1,2,6,5] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,4,1,5,2,6] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,4,1,5,6,2] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,4,1,6,2,5] => [1,3,2,4,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,4,1,6,5,2] => [1,3,2,4,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,4,2,1,5,6] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,4,2,1,6,5] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,4,2,5,1,6] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,4,2,5,6,1] => [1,3,2,4,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,4,2,6,1,5] => [1,3,2,4,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,4,2,6,5,1] => [1,3,2,4,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,4,5,1,2,6] => [1,3,5,2,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,4,5,1,6,2] => [1,3,5,6,2,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,4,5,2,1,6] => [1,3,5,2,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,4,5,2,6,1] => [1,3,5,6,2,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,4,5,6,1,2] => [1,3,5,2,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,4,5,6,2,1] => [1,3,5,2,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,4,6,1,2,5] => [1,3,6,5,2,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,4,6,1,5,2] => [1,3,6,2,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,4,6,2,1,5] => [1,3,6,5,2,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,4,6,2,5,1] => [1,3,6,2,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,4,6,5,1,2] => [1,3,6,2,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,4,6,5,2,1] => [1,3,6,2,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,5,1,2,4,6] => [1,3,2,5,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,1,2,6,4] => [1,3,2,5,6,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,1,4,2,6] => [1,3,2,5,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,1,4,6,2] => [1,3,2,5,6,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,1,6,2,4] => [1,3,2,5,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,1,6,4,2] => [1,3,2,5,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,2,1,4,6] => [1,3,2,5,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,2,1,6,4] => [1,3,2,5,6,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,2,4,1,6] => [1,3,2,5,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,2,4,6,1] => [1,3,2,5,6,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,2,6,1,4] => [1,3,2,5,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,2,6,4,1] => [1,3,2,5,4,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,5,4,1,2,6] => [1,3,4,2,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,5,4,1,6,2] => [1,3,4,2,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,5,4,2,1,6] => [1,3,4,2,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,5,4,2,6,1] => [1,3,4,2,5,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,5,4,6,1,2] => [1,3,4,6,2,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,5,4,6,2,1] => [1,3,4,6,2,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,5,6,1,2,4] => [1,3,6,4,2,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,5,6,1,4,2] => [1,3,6,2,5,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,5,6,2,1,4] => [1,3,6,4,2,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,5,6,2,4,1] => [1,3,6,2,5,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,5,6,4,1,2] => [1,3,6,2,5,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,5,6,4,2,1] => [1,3,6,2,5,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,6,1,2,4,5] => [1,3,2,6,5,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,6,1,2,5,4] => [1,3,2,6,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,6,1,4,2,5] => [1,3,2,6,5,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,6,1,4,5,2] => [1,3,2,6,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,6,1,5,2,4] => [1,3,2,6,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,6,1,5,4,2] => [1,3,2,6,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,6,2,1,4,5] => [1,3,2,6,5,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,6,2,1,5,4] => [1,3,2,6,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,6,2,4,1,5] => [1,3,2,6,5,4] => [.,[[.,.],[[[.,.],.],.]]] => [[[],[[],[],[]]]] => 4
[3,6,2,4,5,1] => [1,3,2,6,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,6,2,5,1,4] => [1,3,2,6,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,6,2,5,4,1] => [1,3,2,6,4,5] => [.,[[.,.],[[.,[.,.]],.]]] => [[[],[[[]],[]]]] => 3
[3,6,4,1,2,5] => [1,3,4,2,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,6,4,1,5,2] => [1,3,4,2,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,6,4,2,1,5] => [1,3,4,2,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,6,4,2,5,1] => [1,3,4,2,6,5] => [.,[[.,.],[.,[[.,.],.]]]] => [[[],[[[],[]]]]] => 3
[3,6,4,5,1,2] => [1,3,4,5,2,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,6,4,5,2,1] => [1,3,4,5,2,6] => [.,[[.,.],[.,[.,[.,.]]]]] => [[[],[[[[]]]]]] => 2
[3,6,5,1,2,4] => [1,3,5,2,6,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,6,5,1,4,2] => [1,3,5,4,2,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,6,5,2,1,4] => [1,3,5,2,6,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,6,5,2,4,1] => [1,3,5,4,2,6] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,6,5,4,1,2] => [1,3,5,2,6,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[3,6,5,4,2,1] => [1,3,5,2,6,4] => [.,[[.,.],[[.,.],[.,.]]]] => [[[],[[],[[]]]]] => 3
[4,1,2,3,5,6] => [1,4,3,2,5,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,1,2,3,6,5] => [1,4,3,2,5,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,1,2,5,3,6] => [1,4,5,3,2,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,1,2,5,6,3] => [1,4,5,6,3,2] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,1,2,6,3,5] => [1,4,6,5,3,2] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,1,2,6,5,3] => [1,4,6,3,2,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,1,3,2,5,6] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,1,3,2,6,5] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,1,3,5,2,6] => [1,4,5,2,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,1,3,5,6,2] => [1,4,5,6,2,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,1,3,6,2,5] => [1,4,6,5,2,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,1,3,6,5,2] => [1,4,6,2,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,1,5,2,3,6] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,1,5,2,6,3] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,1,5,3,2,6] => [1,4,3,5,2,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,1,5,3,6,2] => [1,4,3,5,6,2] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,1,5,6,2,3] => [1,4,6,3,5,2] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,1,5,6,3,2] => [1,4,6,2,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,1,6,2,3,5] => [1,4,2,3,6,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,1,6,2,5,3] => [1,4,2,3,6,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,1,6,3,2,5] => [1,4,3,6,5,2] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,1,6,3,5,2] => [1,4,3,6,2,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,1,6,5,2,3] => [1,4,5,2,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,1,6,5,3,2] => [1,4,5,3,6,2] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,2,1,3,5,6] => [1,4,3,2,5,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,2,1,3,6,5] => [1,4,3,2,5,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,2,1,5,3,6] => [1,4,5,3,2,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,2,1,5,6,3] => [1,4,5,6,3,2] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,2,1,6,3,5] => [1,4,6,5,3,2] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,2,1,6,5,3] => [1,4,6,3,2,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,2,3,1,5,6] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,2,3,1,6,5] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,2,3,5,1,6] => [1,4,5,2,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,2,3,5,6,1] => [1,4,5,6,2,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,2,3,6,1,5] => [1,4,6,5,2,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,2,3,6,5,1] => [1,4,6,2,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,2,5,1,3,6] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,2,5,1,6,3] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,2,5,3,1,6] => [1,4,3,5,2,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,2,5,3,6,1] => [1,4,3,5,6,2] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,2,5,6,1,3] => [1,4,6,3,5,2] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,2,5,6,3,1] => [1,4,6,2,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,2,6,1,3,5] => [1,4,2,3,6,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,2,6,1,5,3] => [1,4,2,3,6,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,2,6,3,1,5] => [1,4,3,6,5,2] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,2,6,3,5,1] => [1,4,3,6,2,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,2,6,5,1,3] => [1,4,5,2,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,2,6,5,3,1] => [1,4,5,3,6,2] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,3,1,2,5,6] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,1,2,6,5] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,1,5,2,6] => [1,4,5,2,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,1,5,6,2] => [1,4,5,6,2,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,1,6,2,5] => [1,4,6,5,2,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,1,6,5,2] => [1,4,6,2,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,2,1,5,6] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,2,1,6,5] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,2,5,1,6] => [1,4,5,2,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,2,5,6,1] => [1,4,5,6,2,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,2,6,1,5] => [1,4,6,5,2,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,2,6,5,1] => [1,4,6,2,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,5,1,2,6] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,5,1,6,2] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,5,2,1,6] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,5,2,6,1] => [1,4,2,3,5,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,5,6,1,2] => [1,4,6,2,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,5,6,2,1] => [1,4,6,2,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,6,1,2,5] => [1,4,2,3,6,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,6,1,5,2] => [1,4,2,3,6,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,6,2,1,5] => [1,4,2,3,6,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,6,2,5,1] => [1,4,2,3,6,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,3,6,5,1,2] => [1,4,5,2,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,3,6,5,2,1] => [1,4,5,2,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,1,2,3,6] => [1,4,2,5,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,1,2,6,3] => [1,4,2,5,6,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,1,3,2,6] => [1,4,3,2,5,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,5,1,3,6,2] => [1,4,3,2,5,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,5,1,6,2,3] => [1,4,6,3,2,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,5,1,6,3,2] => [1,4,6,2,5,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,5,2,1,3,6] => [1,4,2,5,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,2,1,6,3] => [1,4,2,5,6,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,2,3,1,6] => [1,4,3,2,5,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,5,2,3,6,1] => [1,4,3,2,5,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,5,2,6,1,3] => [1,4,6,3,2,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,5,2,6,3,1] => [1,4,6,2,5,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,5,3,1,2,6] => [1,4,2,5,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,3,1,6,2] => [1,4,2,5,6,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,3,2,1,6] => [1,4,2,5,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,3,2,6,1] => [1,4,2,5,6,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,3,6,1,2] => [1,4,6,2,5,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,5,3,6,2,1] => [1,4,6,2,5,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,5,6,1,2,3] => [1,4,2,5,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,6,1,3,2] => [1,4,2,5,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,6,2,1,3] => [1,4,2,5,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,6,2,3,1] => [1,4,2,5,3,6] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,5,6,3,1,2] => [1,4,3,6,2,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,5,6,3,2,1] => [1,4,3,6,2,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,6,1,2,3,5] => [1,4,2,6,5,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,1,2,5,3] => [1,4,2,6,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,1,3,2,5] => [1,4,3,2,6,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,6,1,3,5,2] => [1,4,3,2,6,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,6,1,5,2,3] => [1,4,5,2,6,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,6,1,5,3,2] => [1,4,5,3,2,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,6,2,1,3,5] => [1,4,2,6,5,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,2,1,5,3] => [1,4,2,6,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,2,3,1,5] => [1,4,3,2,6,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,6,2,3,5,1] => [1,4,3,2,6,5] => [.,[[[.,.],.],[[.,.],.]]] => [[[],[],[[],[]]]] => 4
[4,6,2,5,1,3] => [1,4,5,2,6,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,6,2,5,3,1] => [1,4,5,3,2,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,6,3,1,2,5] => [1,4,2,6,5,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,3,1,5,2] => [1,4,2,6,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,3,2,1,5] => [1,4,2,6,5,3] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,3,2,5,1] => [1,4,2,6,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,3,5,1,2] => [1,4,5,2,6,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,6,3,5,2,1] => [1,4,5,2,6,3] => [.,[[.,[.,.]],[.,[.,.]]]] => [[[[]],[[[]]]]] => 2
[4,6,5,1,2,3] => [1,4,2,6,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,5,1,3,2] => [1,4,2,6,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,5,2,1,3] => [1,4,2,6,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,5,2,3,1] => [1,4,2,6,3,5] => [.,[[.,[.,.]],[[.,.],.]]] => [[[[]],[[],[]]]] => 3
[4,6,5,3,1,2] => [1,4,3,5,2,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[4,6,5,3,2,1] => [1,4,3,5,2,6] => [.,[[[.,.],.],[.,[.,.]]]] => [[[],[],[[[]]]]] => 3
[5,1,2,3,4,6] => [1,5,4,3,2,6] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,1,2,3,6,4] => [1,5,6,4,3,2] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,1,2,4,3,6] => [1,5,3,2,4,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,1,2,4,6,3] => [1,5,6,3,2,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,1,2,6,3,4] => [1,5,3,2,4,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,1,2,6,4,3] => [1,5,4,6,3,2] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,1,3,2,4,6] => [1,5,4,2,3,6] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,1,3,2,6,4] => [1,5,6,4,2,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,1,3,4,2,6] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,1,3,4,6,2] => [1,5,6,2,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,1,3,6,2,4] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,1,3,6,4,2] => [1,5,4,6,2,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,1,4,2,3,6] => [1,5,3,4,2,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,1,4,2,6,3] => [1,5,6,3,4,2] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,1,4,3,2,6] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,1,4,3,6,2] => [1,5,6,2,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,1,4,6,2,3] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,1,4,6,3,2] => [1,5,3,4,6,2] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,1,6,2,3,4] => [1,5,3,6,4,2] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,1,6,2,4,3] => [1,5,4,2,3,6] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,1,6,3,2,4] => [1,5,2,3,6,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,1,6,3,4,2] => [1,5,4,3,6,2] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,1,6,4,2,3] => [1,5,2,3,6,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,1,6,4,3,2] => [1,5,3,6,2,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,2,1,3,4,6] => [1,5,4,3,2,6] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,2,1,3,6,4] => [1,5,6,4,3,2] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,2,1,4,3,6] => [1,5,3,2,4,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,2,1,4,6,3] => [1,5,6,3,2,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,2,1,6,3,4] => [1,5,3,2,4,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,2,1,6,4,3] => [1,5,4,6,3,2] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,2,3,1,4,6] => [1,5,4,2,3,6] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,2,3,1,6,4] => [1,5,6,4,2,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,2,3,4,1,6] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,2,3,4,6,1] => [1,5,6,2,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,2,3,6,1,4] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,2,3,6,4,1] => [1,5,4,6,2,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,2,4,1,3,6] => [1,5,3,4,2,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,2,4,1,6,3] => [1,5,6,3,4,2] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,2,4,3,1,6] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,2,4,3,6,1] => [1,5,6,2,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,2,4,6,1,3] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,2,4,6,3,1] => [1,5,3,4,6,2] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,2,6,1,3,4] => [1,5,3,6,4,2] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,2,6,1,4,3] => [1,5,4,2,3,6] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,2,6,3,1,4] => [1,5,2,3,6,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,2,6,3,4,1] => [1,5,4,3,6,2] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,2,6,4,1,3] => [1,5,2,3,6,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,2,6,4,3,1] => [1,5,3,6,2,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,3,1,2,4,6] => [1,5,4,2,3,6] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,3,1,2,6,4] => [1,5,6,4,2,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,3,1,4,2,6] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,1,4,6,2] => [1,5,6,2,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,1,6,2,4] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,1,6,4,2] => [1,5,4,6,2,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,3,2,1,4,6] => [1,5,4,2,3,6] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,3,2,1,6,4] => [1,5,6,4,2,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,3,2,4,1,6] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,2,4,6,1] => [1,5,6,2,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,2,6,1,4] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,2,6,4,1] => [1,5,4,6,2,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,3,4,1,2,6] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,4,1,6,2] => [1,5,6,2,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,4,2,1,6] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,4,2,6,1] => [1,5,6,2,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,4,6,1,2] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,4,6,2,1] => [1,5,2,3,4,6] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,6,1,2,4] => [1,5,2,3,6,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,6,1,4,2] => [1,5,4,2,3,6] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,3,6,2,1,4] => [1,5,2,3,6,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,6,2,4,1] => [1,5,4,2,3,6] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,3,6,4,1,2] => [1,5,2,3,6,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,3,6,4,2,1] => [1,5,2,3,6,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,4,1,2,3,6] => [1,5,3,2,4,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,4,1,2,6,3] => [1,5,6,3,2,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,4,1,3,2,6] => [1,5,2,4,3,6] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,1,3,6,2] => [1,5,6,2,4,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,1,6,2,3] => [1,5,2,4,6,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,1,6,3,2] => [1,5,3,2,4,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,4,2,1,3,6] => [1,5,3,2,4,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,4,2,1,6,3] => [1,5,6,3,2,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,4,2,3,1,6] => [1,5,2,4,3,6] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,2,3,6,1] => [1,5,6,2,4,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,2,6,1,3] => [1,5,2,4,6,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,2,6,3,1] => [1,5,3,2,4,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,4,3,1,2,6] => [1,5,2,4,3,6] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,3,1,6,2] => [1,5,6,2,4,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,3,2,1,6] => [1,5,2,4,3,6] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,3,2,6,1] => [1,5,6,2,4,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,3,6,1,2] => [1,5,2,4,6,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,3,6,2,1] => [1,5,2,4,6,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,6,1,2,3] => [1,5,2,4,3,6] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,6,1,3,2] => [1,5,3,6,2,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,4,6,2,1,3] => [1,5,2,4,3,6] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,6,2,3,1] => [1,5,3,6,2,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,4,6,3,1,2] => [1,5,2,4,3,6] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,4,6,3,2,1] => [1,5,2,4,3,6] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,6,1,2,3,4] => [1,5,3,2,6,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,6,1,2,4,3] => [1,5,4,2,6,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,6,1,3,2,4] => [1,5,2,6,4,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,6,1,3,4,2] => [1,5,4,3,2,6] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,6,1,4,2,3] => [1,5,2,6,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,6,1,4,3,2] => [1,5,3,2,6,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,6,2,1,3,4] => [1,5,3,2,6,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,6,2,1,4,3] => [1,5,4,2,6,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,6,2,3,1,4] => [1,5,2,6,4,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,6,2,3,4,1] => [1,5,4,3,2,6] => [.,[[[[.,.],.],.],[.,.]]] => [[[],[],[],[[]]]] => 4
[5,6,2,4,1,3] => [1,5,2,6,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,6,2,4,3,1] => [1,5,3,2,6,4] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,6,3,1,2,4] => [1,5,2,6,4,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,6,3,1,4,2] => [1,5,4,2,6,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,6,3,2,1,4] => [1,5,2,6,4,3] => [.,[[.,[[.,.],.]],[.,.]]] => [[[[],[]],[[]]]] => 3
[5,6,3,2,4,1] => [1,5,4,2,6,3] => [.,[[[.,[.,.]],.],[.,.]]] => [[[[]],[],[[]]]] => 3
[5,6,3,4,1,2] => [1,5,2,6,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,6,3,4,2,1] => [1,5,2,6,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,6,4,1,2,3] => [1,5,2,6,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,6,4,1,3,2] => [1,5,3,4,2,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,6,4,2,1,3] => [1,5,2,6,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,6,4,2,3,1] => [1,5,3,4,2,6] => [.,[[[.,.],[.,.]],[.,.]]] => [[[],[[]],[[]]]] => 3
[5,6,4,3,1,2] => [1,5,2,6,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[5,6,4,3,2,1] => [1,5,2,6,3,4] => [.,[[.,[.,[.,.]]],[.,.]]] => [[[[[]]],[[]]]] => 2
[6,1,2,3,4,5] => [1,6,5,4,3,2] => [.,[[[[[.,.],.],.],.],.]] => [[[],[],[],[],[]]] => 5
[6,1,2,3,5,4] => [1,6,4,3,2,5] => [.,[[[[.,.],.],[.,.]],.]] => [[[],[],[[]],[]]] => 4
[6,1,2,4,3,5] => [1,6,5,3,2,4] => [.,[[[[.,.],[.,.]],.],.]] => [[[],[[]],[],[]]] => 4
[6,1,2,4,5,3] => [1,6,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,1,2,5,3,4] => [1,6,4,5,3,2] => [.,[[[[.,.],.],[.,.]],.]] => [[[],[],[[]],[]]] => 4
[6,1,2,5,4,3] => [1,6,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,1,3,2,4,5] => [1,6,5,4,2,3] => [.,[[[[.,[.,.]],.],.],.]] => [[[[]],[],[],[]]] => 4
[6,1,3,2,5,4] => [1,6,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,1,3,4,2,5] => [1,6,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],.]] => [[[[[]]],[],[]]] => 3
[6,1,3,4,5,2] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,1,3,5,2,4] => [1,6,4,5,2,3] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,1,3,5,4,2] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,1,4,2,3,5] => [1,6,5,3,4,2] => [.,[[[[.,.],[.,.]],.],.]] => [[[],[[]],[],[]]] => 4
[6,1,4,2,5,3] => [1,6,3,4,2,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,1,4,3,2,5] => [1,6,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],.]] => [[[[[]]],[],[]]] => 3
[6,1,4,3,5,2] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,1,4,5,2,3] => [1,6,3,4,5,2] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,1,4,5,3,2] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,1,5,2,3,4] => [1,6,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,1,5,2,4,3] => [1,6,3,5,4,2] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,1,5,3,2,4] => [1,6,4,3,5,2] => [.,[[[[.,.],.],[.,.]],.]] => [[[],[],[[]],[]]] => 4
[6,1,5,3,4,2] => [1,6,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],.]] => [[[[[],[]]],[]]] => 3
[6,1,5,4,2,3] => [1,6,3,5,2,4] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,1,5,4,3,2] => [1,6,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],.]] => [[[[[],[]]],[]]] => 3
[6,2,1,3,4,5] => [1,6,5,4,3,2] => [.,[[[[[.,.],.],.],.],.]] => [[[],[],[],[],[]]] => 5
[6,2,1,3,5,4] => [1,6,4,3,2,5] => [.,[[[[.,.],.],[.,.]],.]] => [[[],[],[[]],[]]] => 4
[6,2,1,4,3,5] => [1,6,5,3,2,4] => [.,[[[[.,.],[.,.]],.],.]] => [[[],[[]],[],[]]] => 4
[6,2,1,4,5,3] => [1,6,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,2,1,5,3,4] => [1,6,4,5,3,2] => [.,[[[[.,.],.],[.,.]],.]] => [[[],[],[[]],[]]] => 4
[6,2,1,5,4,3] => [1,6,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,2,3,1,4,5] => [1,6,5,4,2,3] => [.,[[[[.,[.,.]],.],.],.]] => [[[[]],[],[],[]]] => 4
[6,2,3,1,5,4] => [1,6,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,2,3,4,1,5] => [1,6,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],.]] => [[[[[]]],[],[]]] => 3
[6,2,3,4,5,1] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,2,3,5,1,4] => [1,6,4,5,2,3] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,2,3,5,4,1] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,2,4,1,3,5] => [1,6,5,3,4,2] => [.,[[[[.,.],[.,.]],.],.]] => [[[],[[]],[],[]]] => 4
[6,2,4,1,5,3] => [1,6,3,4,2,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,2,4,3,1,5] => [1,6,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],.]] => [[[[[]]],[],[]]] => 3
[6,2,4,3,5,1] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,2,4,5,1,3] => [1,6,3,4,5,2] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,2,4,5,3,1] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,2,5,1,3,4] => [1,6,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,2,5,1,4,3] => [1,6,3,5,4,2] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,2,5,3,1,4] => [1,6,4,3,5,2] => [.,[[[[.,.],.],[.,.]],.]] => [[[],[],[[]],[]]] => 4
[6,2,5,3,4,1] => [1,6,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],.]] => [[[[[],[]]],[]]] => 3
[6,2,5,4,1,3] => [1,6,3,5,2,4] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,2,5,4,3,1] => [1,6,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],.]] => [[[[[],[]]],[]]] => 3
[6,3,1,2,4,5] => [1,6,5,4,2,3] => [.,[[[[.,[.,.]],.],.],.]] => [[[[]],[],[],[]]] => 4
[6,3,1,2,5,4] => [1,6,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,3,1,4,2,5] => [1,6,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],.]] => [[[[[]]],[],[]]] => 3
[6,3,1,4,5,2] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,3,1,5,2,4] => [1,6,4,5,2,3] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,3,1,5,4,2] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,3,2,1,4,5] => [1,6,5,4,2,3] => [.,[[[[.,[.,.]],.],.],.]] => [[[[]],[],[],[]]] => 4
[6,3,2,1,5,4] => [1,6,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,3,2,4,1,5] => [1,6,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],.]] => [[[[[]]],[],[]]] => 3
[6,3,2,4,5,1] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,3,2,5,1,4] => [1,6,4,5,2,3] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,3,2,5,4,1] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,3,4,1,2,5] => [1,6,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],.]] => [[[[[]]],[],[]]] => 3
[6,3,4,1,5,2] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,3,4,2,1,5] => [1,6,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],.]] => [[[[[]]],[],[]]] => 3
[6,3,4,2,5,1] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,3,4,5,1,2] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,3,4,5,2,1] => [1,6,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],.]] => [[[[[[]]]],[]]] => 2
[6,3,5,1,2,4] => [1,6,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,3,5,1,4,2] => [1,6,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],.]] => [[[[[],[]]],[]]] => 3
[6,3,5,2,1,4] => [1,6,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,3,5,2,4,1] => [1,6,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],.]] => [[[[[],[]]],[]]] => 3
[6,3,5,4,1,2] => [1,6,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],.]] => [[[[[],[]]],[]]] => 3
[6,3,5,4,2,1] => [1,6,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],.]] => [[[[[],[]]],[]]] => 3
[6,4,1,2,3,5] => [1,6,5,3,2,4] => [.,[[[[.,.],[.,.]],.],.]] => [[[],[[]],[],[]]] => 4
[6,4,1,2,5,3] => [1,6,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,4,1,3,2,5] => [1,6,5,2,4,3] => [.,[[[.,[[.,.],.]],.],.]] => [[[[],[]],[],[]]] => 4
[6,4,1,3,5,2] => [1,6,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,1,5,2,3] => [1,6,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,4,1,5,3,2] => [1,6,2,4,5,3] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,2,1,3,5] => [1,6,5,3,2,4] => [.,[[[[.,.],[.,.]],.],.]] => [[[],[[]],[],[]]] => 4
[6,4,2,1,5,3] => [1,6,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,4,2,3,1,5] => [1,6,5,2,4,3] => [.,[[[.,[[.,.],.]],.],.]] => [[[[],[]],[],[]]] => 4
[6,4,2,3,5,1] => [1,6,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,2,5,1,3] => [1,6,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,4,2,5,3,1] => [1,6,2,4,5,3] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,3,1,2,5] => [1,6,5,2,4,3] => [.,[[[.,[[.,.],.]],.],.]] => [[[[],[]],[],[]]] => 4
[6,4,3,1,5,2] => [1,6,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,3,2,1,5] => [1,6,5,2,4,3] => [.,[[[.,[[.,.],.]],.],.]] => [[[[],[]],[],[]]] => 4
[6,4,3,2,5,1] => [1,6,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,3,5,1,2] => [1,6,2,4,5,3] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,3,5,2,1] => [1,6,2,4,5,3] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,5,1,2,3] => [1,6,3,5,2,4] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,4,5,1,3,2] => [1,6,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,5,2,1,3] => [1,6,3,5,2,4] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,4,5,2,3,1] => [1,6,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,5,3,1,2] => [1,6,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,4,5,3,2,1] => [1,6,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],.]] => [[[[],[[]]],[]]] => 3
[6,5,1,2,3,4] => [1,6,4,2,5,3] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,5,1,2,4,3] => [1,6,3,2,5,4] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,5,1,3,2,4] => [1,6,4,3,2,5] => [.,[[[[.,.],.],[.,.]],.]] => [[[],[],[[]],[]]] => 4
[6,5,1,3,4,2] => [1,6,2,5,4,3] => [.,[[.,[[[.,.],.],.]],.]] => [[[[],[],[]],[]]] => 4
[6,5,1,4,2,3] => [1,6,3,2,5,4] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,5,1,4,3,2] => [1,6,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],.]] => [[[[[]],[]],[]]] => 3
[6,5,2,1,3,4] => [1,6,4,2,5,3] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,5,2,1,4,3] => [1,6,3,2,5,4] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,5,2,3,1,4] => [1,6,4,3,2,5] => [.,[[[[.,.],.],[.,.]],.]] => [[[],[],[[]],[]]] => 4
[6,5,2,3,4,1] => [1,6,2,5,4,3] => [.,[[.,[[[.,.],.],.]],.]] => [[[[],[],[]],[]]] => 4
[6,5,2,4,1,3] => [1,6,3,2,5,4] => [.,[[[.,.],[[.,.],.]],.]] => [[[],[[],[]],[]]] => 4
[6,5,2,4,3,1] => [1,6,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],.]] => [[[[[]],[]],[]]] => 3
[6,5,3,1,2,4] => [1,6,4,2,5,3] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,5,3,1,4,2] => [1,6,2,5,4,3] => [.,[[.,[[[.,.],.],.]],.]] => [[[[],[],[]],[]]] => 4
[6,5,3,2,1,4] => [1,6,4,2,5,3] => [.,[[[.,[.,.]],[.,.]],.]] => [[[[]],[[]],[]]] => 3
[6,5,3,2,4,1] => [1,6,2,5,4,3] => [.,[[.,[[[.,.],.],.]],.]] => [[[[],[],[]],[]]] => 4
[6,5,3,4,1,2] => [1,6,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],.]] => [[[[[]],[]],[]]] => 3
[6,5,3,4,2,1] => [1,6,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],.]] => [[[[[]],[]],[]]] => 3
[6,5,4,1,2,3] => [1,6,3,4,2,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,5,4,1,3,2] => [1,6,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],.]] => [[[[[]],[]],[]]] => 3
[6,5,4,2,1,3] => [1,6,3,4,2,5] => [.,[[[.,.],[.,[.,.]]],.]] => [[[],[[[]]],[]]] => 3
[6,5,4,2,3,1] => [1,6,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],.]] => [[[[[]],[]],[]]] => 3
[6,5,4,3,1,2] => [1,6,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],.]] => [[[[[]],[]],[]]] => 3
[6,5,4,3,2,1] => [1,6,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],.]] => [[[[[]],[]],[]]] => 3
[1,2,3,4,5,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,3,4,5,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,3,4,6,5,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,3,4,6,7,5] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,3,4,7,5,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,2,3,4,7,6,5] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,2,3,5,4,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,3,5,4,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,3,5,6,4,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,3,5,6,7,4] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,3,5,7,4,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,2,3,5,7,6,4] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,2,3,6,4,5,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,3,6,4,7,5] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,3,6,5,4,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,3,6,5,7,4] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,3,6,7,4,5] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,3,6,7,5,4] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,3,7,4,5,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[1,2,3,7,4,6,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,2,3,7,5,4,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[1,2,3,7,5,6,4] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,2,3,7,6,4,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,2,3,7,6,5,4] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,2,4,3,5,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,4,3,5,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,4,3,6,5,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,4,3,6,7,5] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,4,3,7,5,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,2,4,3,7,6,5] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,2,4,5,3,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,4,5,3,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,4,5,6,3,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,4,5,6,7,3] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,2,4,5,7,3,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,2,4,5,7,6,3] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,2,4,6,3,5,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,4,6,3,7,5] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,4,6,5,3,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,4,6,5,7,3] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,4,6,7,3,5] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,4,6,7,5,3] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,2,4,7,3,5,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[1,2,4,7,3,6,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,2,4,7,5,3,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[1,2,4,7,5,6,3] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,2,4,7,6,3,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,2,4,7,6,5,3] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,2,5,3,4,6,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,3,4,7,6] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,3,6,4,7] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,3,6,7,4] => [1,2,3,5,6,7,4] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,3,7,4,6] => [1,2,3,5,7,6,4] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,3,7,6,4] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,4,3,6,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,4,3,7,6] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,4,6,3,7] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,4,6,7,3] => [1,2,3,5,6,7,4] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,4,7,3,6] => [1,2,3,5,7,6,4] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,4,7,6,3] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,6,3,4,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,6,3,7,4] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,6,4,3,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,6,4,7,3] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,6,7,3,4] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,6,7,4,3] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,7,3,4,6] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,7,3,6,4] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,7,4,3,6] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,7,4,6,3] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,2,5,7,6,3,4] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,5,7,6,4,3] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,2,6,3,4,5,7] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,2,6,3,4,7,5] => [1,2,3,6,7,5,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,2,6,3,5,4,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,3,5,7,4] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,3,7,4,5] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,3,7,5,4] => [1,2,3,6,5,7,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,2,6,4,3,5,7] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,2,6,4,3,7,5] => [1,2,3,6,7,5,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,2,6,4,5,3,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,4,5,7,3] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,4,7,3,5] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,4,7,5,3] => [1,2,3,6,5,7,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,2,6,5,3,4,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,5,3,7,4] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,5,4,3,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,5,4,7,3] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,5,7,3,4] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,5,7,4,3] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,7,3,4,5] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,7,3,5,4] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,2,6,7,4,3,5] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,7,4,5,3] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,2,6,7,5,3,4] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,6,7,5,4,3] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,2,7,3,4,5,6] => [1,2,3,7,6,5,4] => [.,[.,[.,[[[[.,.],.],.],.]]]] => [[[[[],[],[],[]]]]] => 4
[1,2,7,3,4,6,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,2,7,3,5,4,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[1,2,7,3,5,6,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,2,7,3,6,4,5] => [1,2,3,7,5,6,4] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,2,7,3,6,5,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,2,7,4,3,5,6] => [1,2,3,7,6,5,4] => [.,[.,[.,[[[[.,.],.],.],.]]]] => [[[[[],[],[],[]]]]] => 4
[1,2,7,4,3,6,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,2,7,4,5,3,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[1,2,7,4,5,6,3] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,2,7,4,6,3,5] => [1,2,3,7,5,6,4] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,2,7,4,6,5,3] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,2,7,5,3,4,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[1,2,7,5,3,6,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,2,7,5,4,3,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[1,2,7,5,4,6,3] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,2,7,5,6,3,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,2,7,5,6,4,3] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,2,7,6,3,4,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,2,7,6,3,5,4] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[1,2,7,6,4,3,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,2,7,6,4,5,3] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[1,2,7,6,5,3,4] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[1,2,7,6,5,4,3] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[1,3,2,4,5,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,2,4,5,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,2,4,6,5,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,2,4,6,7,5] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,2,4,7,5,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,3,2,4,7,6,5] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,3,2,5,4,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,2,5,4,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,2,5,6,4,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,2,5,6,7,4] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,2,5,7,4,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,3,2,5,7,6,4] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,3,2,6,4,5,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,2,6,4,7,5] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,2,6,5,4,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,2,6,5,7,4] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,2,6,7,4,5] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,2,6,7,5,4] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,2,7,4,5,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[1,3,2,7,4,6,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,3,2,7,5,4,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[1,3,2,7,5,6,4] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,3,2,7,6,4,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,3,2,7,6,5,4] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,3,4,2,5,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,4,2,5,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,4,2,6,5,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,4,2,6,7,5] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,4,2,7,5,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,3,4,2,7,6,5] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,3,4,5,2,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,4,5,2,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,4,5,6,2,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,4,5,6,7,2] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[1,3,4,5,7,2,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,3,4,5,7,6,2] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[1,3,4,6,2,5,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,4,6,2,7,5] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,4,6,5,2,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,4,6,5,7,2] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,4,6,7,2,5] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,4,6,7,5,2] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[1,3,4,7,2,5,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[1,3,4,7,2,6,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,3,4,7,5,2,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[1,3,4,7,5,6,2] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,3,4,7,6,2,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,3,4,7,6,5,2] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[1,3,5,2,4,6,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,2,4,7,6] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,2,6,4,7] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,2,6,7,4] => [1,2,3,5,6,7,4] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,2,7,4,6] => [1,2,3,5,7,6,4] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,2,7,6,4] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,4,2,6,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,4,2,7,6] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,4,6,2,7] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,4,6,7,2] => [1,2,3,5,6,7,4] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,4,7,2,6] => [1,2,3,5,7,6,4] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,4,7,6,2] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,6,2,4,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,6,2,7,4] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,6,4,2,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,6,4,7,2] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,6,7,2,4] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,6,7,4,2] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,7,2,4,6] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,7,2,6,4] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,7,4,2,6] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,7,4,6,2] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[1,3,5,7,6,2,4] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,5,7,6,4,2] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[1,3,6,2,4,5,7] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,3,6,2,4,7,5] => [1,2,3,6,7,5,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,3,6,2,5,4,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,2,5,7,4] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,2,7,4,5] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,2,7,5,4] => [1,2,3,6,5,7,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,3,6,4,2,5,7] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,3,6,4,2,7,5] => [1,2,3,6,7,5,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,3,6,4,5,2,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,4,5,7,2] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,4,7,2,5] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,4,7,5,2] => [1,2,3,6,5,7,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,3,6,5,2,4,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,5,2,7,4] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,5,4,2,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,5,4,7,2] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,5,7,2,4] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,5,7,4,2] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,7,2,4,5] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,7,2,5,4] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,3,6,7,4,2,5] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,7,4,5,2] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[1,3,6,7,5,2,4] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,6,7,5,4,2] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[1,3,7,2,4,5,6] => [1,2,3,7,6,5,4] => [.,[.,[.,[[[[.,.],.],.],.]]]] => [[[[[],[],[],[]]]]] => 4
[1,3,7,2,4,6,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,3,7,2,5,4,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[1,3,7,2,5,6,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,3,7,2,6,4,5] => [1,2,3,7,5,6,4] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,3,7,2,6,5,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,3,7,4,2,5,6] => [1,2,3,7,6,5,4] => [.,[.,[.,[[[[.,.],.],.],.]]]] => [[[[[],[],[],[]]]]] => 4
[1,3,7,4,2,6,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,3,7,4,5,2,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[1,3,7,4,5,6,2] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,3,7,4,6,2,5] => [1,2,3,7,5,6,4] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,3,7,4,6,5,2] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,3,7,5,2,4,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[1,3,7,5,2,6,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,3,7,5,4,2,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[1,3,7,5,4,6,2] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,3,7,5,6,2,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,3,7,5,6,4,2] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[1,3,7,6,2,4,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,3,7,6,2,5,4] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[1,3,7,6,4,2,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[1,3,7,6,4,5,2] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[1,3,7,6,5,2,4] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[1,3,7,6,5,4,2] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[1,4,2,3,5,6,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,2,3,5,7,6] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,2,3,6,5,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,2,3,6,7,5] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,2,3,7,5,6] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,2,3,7,6,5] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,2,5,3,6,7] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,2,5,3,7,6] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,2,5,6,3,7] => [1,2,4,5,6,3,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,2,5,6,7,3] => [1,2,4,5,6,7,3] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,2,5,7,3,6] => [1,2,4,5,7,6,3] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,2,5,7,6,3] => [1,2,4,5,7,3,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,2,6,3,5,7] => [1,2,4,6,5,3,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,2,6,3,7,5] => [1,2,4,6,7,5,3] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,2,6,5,3,7] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,2,6,5,7,3] => [1,2,4,6,7,3,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,2,6,7,3,5] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,2,6,7,5,3] => [1,2,4,6,5,7,3] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,2,7,3,5,6] => [1,2,4,7,6,5,3] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,2,7,3,6,5] => [1,2,4,7,5,3,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,2,7,5,3,6] => [1,2,4,7,6,3,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,2,7,5,6,3] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,2,7,6,3,5] => [1,2,4,7,5,6,3] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,2,7,6,5,3] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,3,2,5,6,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,3,2,5,7,6] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,3,2,6,5,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,3,2,6,7,5] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,3,2,7,5,6] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,3,2,7,6,5] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,3,5,2,6,7] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,3,5,2,7,6] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,3,5,6,2,7] => [1,2,4,5,6,3,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,3,5,6,7,2] => [1,2,4,5,6,7,3] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,3,5,7,2,6] => [1,2,4,5,7,6,3] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,3,5,7,6,2] => [1,2,4,5,7,3,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,3,6,2,5,7] => [1,2,4,6,5,3,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,3,6,2,7,5] => [1,2,4,6,7,5,3] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,3,6,5,2,7] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,3,6,5,7,2] => [1,2,4,6,7,3,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,3,6,7,2,5] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,3,6,7,5,2] => [1,2,4,6,5,7,3] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,3,7,2,5,6] => [1,2,4,7,6,5,3] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,3,7,2,6,5] => [1,2,4,7,5,3,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,3,7,5,2,6] => [1,2,4,7,6,3,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,3,7,5,6,2] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,3,7,6,2,5] => [1,2,4,7,5,6,3] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,3,7,6,5,2] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,5,2,3,6,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,5,2,3,7,6] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,5,2,6,3,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,5,2,6,7,3] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,5,2,7,3,6] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,5,2,7,6,3] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,5,3,2,6,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,5,3,2,7,6] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,5,3,6,2,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,5,3,6,7,2] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,5,3,7,2,6] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,5,3,7,6,2] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,5,6,2,3,7] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,5,6,2,7,3] => [1,2,4,6,7,3,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,5,6,3,2,7] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,5,6,3,7,2] => [1,2,4,6,7,3,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,5,6,7,2,3] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,5,6,7,3,2] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,5,7,2,3,6] => [1,2,4,7,6,3,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,5,7,2,6,3] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,5,7,3,2,6] => [1,2,4,7,6,3,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,5,7,3,6,2] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,5,7,6,2,3] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,5,7,6,3,2] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,6,2,3,5,7] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,2,3,7,5] => [1,2,4,3,6,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,2,5,3,7] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,2,5,7,3] => [1,2,4,3,6,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,2,7,3,5] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,2,7,5,3] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,3,2,5,7] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,3,2,7,5] => [1,2,4,3,6,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,3,5,2,7] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,3,5,7,2] => [1,2,4,3,6,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,3,7,2,5] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,3,7,5,2] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,6,5,2,3,7] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,6,5,2,7,3] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,6,5,3,2,7] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,6,5,3,7,2] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,6,5,7,2,3] => [1,2,4,5,7,3,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,6,5,7,3,2] => [1,2,4,5,7,3,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,6,7,2,3,5] => [1,2,4,7,5,3,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,6,7,2,5,3] => [1,2,4,7,3,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,6,7,3,2,5] => [1,2,4,7,5,3,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,6,7,3,5,2] => [1,2,4,7,3,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,6,7,5,2,3] => [1,2,4,7,3,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,6,7,5,3,2] => [1,2,4,7,3,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,7,2,3,5,6] => [1,2,4,3,7,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,7,2,3,6,5] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,7,2,5,3,6] => [1,2,4,3,7,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,7,2,5,6,3] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,7,2,6,3,5] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,7,2,6,5,3] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,7,3,2,5,6] => [1,2,4,3,7,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,7,3,2,6,5] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,7,3,5,2,6] => [1,2,4,3,7,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[1,4,7,3,5,6,2] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,7,3,6,2,5] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,7,3,6,5,2] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[1,4,7,5,2,3,6] => [1,2,4,5,3,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,7,5,2,6,3] => [1,2,4,5,3,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,7,5,3,2,6] => [1,2,4,5,3,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,7,5,3,6,2] => [1,2,4,5,3,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[1,4,7,5,6,2,3] => [1,2,4,5,6,3,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,7,5,6,3,2] => [1,2,4,5,6,3,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[1,4,7,6,2,3,5] => [1,2,4,6,3,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,7,6,2,5,3] => [1,2,4,6,5,3,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,7,6,3,2,5] => [1,2,4,6,3,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,7,6,3,5,2] => [1,2,4,6,5,3,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,7,6,5,2,3] => [1,2,4,6,3,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,4,7,6,5,3,2] => [1,2,4,6,3,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[1,5,2,3,4,6,7] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,2,3,4,7,6] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,2,3,6,4,7] => [1,2,5,6,4,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,2,3,6,7,4] => [1,2,5,6,7,4,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,2,3,7,4,6] => [1,2,5,7,6,4,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,2,3,7,6,4] => [1,2,5,7,4,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,2,4,3,6,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,2,4,3,7,6] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,2,4,6,3,7] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,2,4,6,7,3] => [1,2,5,6,7,3,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,2,4,7,3,6] => [1,2,5,7,6,3,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,2,4,7,6,3] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,2,6,3,4,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,2,6,3,7,4] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,2,6,4,3,7] => [1,2,5,4,6,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,2,6,4,7,3] => [1,2,5,4,6,7,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,2,6,7,3,4] => [1,2,5,7,4,6,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,2,6,7,4,3] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,2,7,3,4,6] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,2,7,3,6,4] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,2,7,4,3,6] => [1,2,5,4,7,6,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,2,7,4,6,3] => [1,2,5,4,7,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,2,7,6,3,4] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,2,7,6,4,3] => [1,2,5,6,4,7,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,3,2,4,6,7] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,3,2,4,7,6] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,3,2,6,4,7] => [1,2,5,6,4,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,3,2,6,7,4] => [1,2,5,6,7,4,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,3,2,7,4,6] => [1,2,5,7,6,4,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,3,2,7,6,4] => [1,2,5,7,4,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,3,4,2,6,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,3,4,2,7,6] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,3,4,6,2,7] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,3,4,6,7,2] => [1,2,5,6,7,3,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,3,4,7,2,6] => [1,2,5,7,6,3,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,3,4,7,6,2] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,3,6,2,4,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,3,6,2,7,4] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,3,6,4,2,7] => [1,2,5,4,6,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,3,6,4,7,2] => [1,2,5,4,6,7,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,3,6,7,2,4] => [1,2,5,7,4,6,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,3,6,7,4,2] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,3,7,2,4,6] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,3,7,2,6,4] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,3,7,4,2,6] => [1,2,5,4,7,6,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,3,7,4,6,2] => [1,2,5,4,7,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,3,7,6,2,4] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,3,7,6,4,2] => [1,2,5,6,4,7,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,4,2,3,6,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,2,3,7,6] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,2,6,3,7] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,2,6,7,3] => [1,2,5,6,7,3,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,2,7,3,6] => [1,2,5,7,6,3,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,2,7,6,3] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,3,2,6,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,3,2,7,6] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,3,6,2,7] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,3,6,7,2] => [1,2,5,6,7,3,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,3,7,2,6] => [1,2,5,7,6,3,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,3,7,6,2] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,6,2,3,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,6,2,7,3] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,6,3,2,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,6,3,7,2] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,6,7,2,3] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,6,7,3,2] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,7,2,3,6] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,7,2,6,3] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,7,3,2,6] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,7,3,6,2] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,4,7,6,2,3] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,4,7,6,3,2] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,2,3,4,7] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,2,3,7,4] => [1,2,5,3,6,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,2,4,3,7] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,6,2,4,7,3] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,6,2,7,3,4] => [1,2,5,7,4,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,6,2,7,4,3] => [1,2,5,7,3,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,6,3,2,4,7] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,3,2,7,4] => [1,2,5,3,6,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,3,4,2,7] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,6,3,4,7,2] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,6,3,7,2,4] => [1,2,5,7,4,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,6,3,7,4,2] => [1,2,5,7,3,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,6,4,2,3,7] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,4,2,7,3] => [1,2,5,3,6,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,4,3,2,7] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,4,3,7,2] => [1,2,5,3,6,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,4,7,2,3] => [1,2,5,7,3,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,6,4,7,3,2] => [1,2,5,7,3,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,6,7,2,3,4] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,7,2,4,3] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,7,3,2,4] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,7,3,4,2] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,6,7,4,2,3] => [1,2,5,4,7,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,6,7,4,3,2] => [1,2,5,4,7,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,7,2,3,4,6] => [1,2,5,3,7,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,2,3,6,4] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,2,4,3,6] => [1,2,5,4,3,7,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,7,2,4,6,3] => [1,2,5,4,3,7,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,7,2,6,3,4] => [1,2,5,6,3,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,7,2,6,4,3] => [1,2,5,6,4,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,7,3,2,4,6] => [1,2,5,3,7,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,3,2,6,4] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,3,4,2,6] => [1,2,5,4,3,7,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,7,3,4,6,2] => [1,2,5,4,3,7,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[1,5,7,3,6,2,4] => [1,2,5,6,3,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,7,3,6,4,2] => [1,2,5,6,4,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,7,4,2,3,6] => [1,2,5,3,7,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,4,2,6,3] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,4,3,2,6] => [1,2,5,3,7,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,4,3,6,2] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,4,6,2,3] => [1,2,5,6,3,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,7,4,6,3,2] => [1,2,5,6,3,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[1,5,7,6,2,3,4] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,6,2,4,3] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,6,3,2,4] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,6,3,4,2] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[1,5,7,6,4,2,3] => [1,2,5,4,6,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,5,7,6,4,3,2] => [1,2,5,4,6,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[1,6,2,3,4,5,7] => [1,2,6,5,4,3,7] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,2,3,4,7,5] => [1,2,6,7,5,4,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,2,3,5,4,7] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,2,3,5,7,4] => [1,2,6,7,4,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,2,3,7,4,5] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,2,3,7,5,4] => [1,2,6,5,7,4,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,2,4,3,5,7] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,2,4,3,7,5] => [1,2,6,7,5,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,2,4,5,3,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,2,4,5,7,3] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,2,4,7,3,5] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,2,4,7,5,3] => [1,2,6,5,7,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,2,5,3,4,7] => [1,2,6,4,5,3,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,2,5,3,7,4] => [1,2,6,7,4,5,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,2,5,4,3,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,2,5,4,7,3] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,2,5,7,3,4] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,2,5,7,4,3] => [1,2,6,4,5,7,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,2,7,3,4,5] => [1,2,6,4,7,5,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,2,7,3,5,4] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,2,7,4,3,5] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,2,7,4,5,3] => [1,2,6,5,4,7,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,2,7,5,3,4] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,2,7,5,4,3] => [1,2,6,4,7,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,3,2,4,5,7] => [1,2,6,5,4,3,7] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,3,2,4,7,5] => [1,2,6,7,5,4,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,3,2,5,4,7] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,3,2,5,7,4] => [1,2,6,7,4,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,3,2,7,4,5] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,3,2,7,5,4] => [1,2,6,5,7,4,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,3,4,2,5,7] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,3,4,2,7,5] => [1,2,6,7,5,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,3,4,5,2,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,3,4,5,7,2] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,3,4,7,2,5] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,3,4,7,5,2] => [1,2,6,5,7,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,3,5,2,4,7] => [1,2,6,4,5,3,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,3,5,2,7,4] => [1,2,6,7,4,5,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,3,5,4,2,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,3,5,4,7,2] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,3,5,7,2,4] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,3,5,7,4,2] => [1,2,6,4,5,7,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,3,7,2,4,5] => [1,2,6,4,7,5,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,3,7,2,5,4] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,3,7,4,2,5] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,3,7,4,5,2] => [1,2,6,5,4,7,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,3,7,5,2,4] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,3,7,5,4,2] => [1,2,6,4,7,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,4,2,3,5,7] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,4,2,3,7,5] => [1,2,6,7,5,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,4,2,5,3,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,2,5,7,3] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,2,7,3,5] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,2,7,5,3] => [1,2,6,5,7,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,4,3,2,5,7] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,4,3,2,7,5] => [1,2,6,7,5,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,4,3,5,2,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,3,5,7,2] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,3,7,2,5] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,3,7,5,2] => [1,2,6,5,7,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,4,5,2,3,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,5,2,7,3] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,5,3,2,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,5,3,7,2] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,5,7,2,3] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,5,7,3,2] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,7,2,3,5] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,7,2,5,3] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,4,7,3,2,5] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,7,3,5,2] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,4,7,5,2,3] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,4,7,5,3,2] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,5,2,3,4,7] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,5,2,3,7,4] => [1,2,6,7,4,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,5,2,4,3,7] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,2,4,7,3] => [1,2,6,7,3,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,2,7,3,4] => [1,2,6,3,5,7,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,2,7,4,3] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,5,3,2,4,7] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,5,3,2,7,4] => [1,2,6,7,4,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,5,3,4,2,7] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,3,4,7,2] => [1,2,6,7,3,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,3,7,2,4] => [1,2,6,3,5,7,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,3,7,4,2] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,5,4,2,3,7] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,4,2,7,3] => [1,2,6,7,3,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,4,3,2,7] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,4,3,7,2] => [1,2,6,7,3,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,4,7,2,3] => [1,2,6,3,5,7,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,4,7,3,2] => [1,2,6,3,5,7,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,7,2,3,4] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,7,2,4,3] => [1,2,6,4,7,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,5,7,3,2,4] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,7,3,4,2] => [1,2,6,4,7,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,5,7,4,2,3] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,5,7,4,3,2] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,7,2,3,4,5] => [1,2,6,4,3,7,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,7,2,3,5,4] => [1,2,6,5,3,7,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,7,2,4,3,5] => [1,2,6,3,7,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,7,2,4,5,3] => [1,2,6,5,4,3,7] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,7,2,5,3,4] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,7,2,5,4,3] => [1,2,6,4,3,7,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,7,3,2,4,5] => [1,2,6,4,3,7,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,7,3,2,5,4] => [1,2,6,5,3,7,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,7,3,4,2,5] => [1,2,6,3,7,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,7,3,4,5,2] => [1,2,6,5,4,3,7] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[1,6,7,3,5,2,4] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,7,3,5,4,2] => [1,2,6,4,3,7,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,7,4,2,3,5] => [1,2,6,3,7,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,7,4,2,5,3] => [1,2,6,5,3,7,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,7,4,3,2,5] => [1,2,6,3,7,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[1,6,7,4,3,5,2] => [1,2,6,5,3,7,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[1,6,7,4,5,2,3] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,7,4,5,3,2] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,7,5,2,3,4] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,7,5,2,4,3] => [1,2,6,4,5,3,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,7,5,3,2,4] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,7,5,3,4,2] => [1,2,6,4,5,3,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[1,6,7,5,4,2,3] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,6,7,5,4,3,2] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[1,7,2,3,4,5,6] => [1,2,7,6,5,4,3] => [.,[.,[[[[[.,.],.],.],.],.]]] => [[[[],[],[],[],[]]]] => 5
[1,7,2,3,4,6,5] => [1,2,7,5,4,3,6] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[1,7,2,3,5,4,6] => [1,2,7,6,4,3,5] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[1,7,2,3,5,6,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,2,3,6,4,5] => [1,2,7,5,6,4,3] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[1,7,2,3,6,5,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,2,4,3,5,6] => [1,2,7,6,5,3,4] => [.,[.,[[[[.,[.,.]],.],.],.]]] => [[[[[]],[],[],[]]]] => 4
[1,7,2,4,3,6,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,2,4,5,3,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[1,7,2,4,5,6,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,2,4,6,3,5] => [1,2,7,5,6,3,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,2,4,6,5,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,2,5,3,4,6] => [1,2,7,6,4,5,3] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[1,7,2,5,3,6,4] => [1,2,7,4,5,3,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,2,5,4,3,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[1,7,2,5,4,6,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,2,5,6,3,4] => [1,2,7,4,5,6,3] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,2,5,6,4,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,2,6,3,4,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,2,6,3,5,4] => [1,2,7,4,6,5,3] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,2,6,4,3,5] => [1,2,7,5,4,6,3] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[1,7,2,6,4,5,3] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[1,7,2,6,5,3,4] => [1,2,7,4,6,3,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,2,6,5,4,3] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[1,7,3,2,4,5,6] => [1,2,7,6,5,4,3] => [.,[.,[[[[[.,.],.],.],.],.]]] => [[[[],[],[],[],[]]]] => 5
[1,7,3,2,4,6,5] => [1,2,7,5,4,3,6] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[1,7,3,2,5,4,6] => [1,2,7,6,4,3,5] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[1,7,3,2,5,6,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,3,2,6,4,5] => [1,2,7,5,6,4,3] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[1,7,3,2,6,5,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,3,4,2,5,6] => [1,2,7,6,5,3,4] => [.,[.,[[[[.,[.,.]],.],.],.]]] => [[[[[]],[],[],[]]]] => 4
[1,7,3,4,2,6,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,3,4,5,2,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[1,7,3,4,5,6,2] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,3,4,6,2,5] => [1,2,7,5,6,3,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,3,4,6,5,2] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,3,5,2,4,6] => [1,2,7,6,4,5,3] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[1,7,3,5,2,6,4] => [1,2,7,4,5,3,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,3,5,4,2,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[1,7,3,5,4,6,2] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,3,5,6,2,4] => [1,2,7,4,5,6,3] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,3,5,6,4,2] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,3,6,2,4,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,3,6,2,5,4] => [1,2,7,4,6,5,3] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,3,6,4,2,5] => [1,2,7,5,4,6,3] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[1,7,3,6,4,5,2] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[1,7,3,6,5,2,4] => [1,2,7,4,6,3,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,3,6,5,4,2] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[1,7,4,2,3,5,6] => [1,2,7,6,5,3,4] => [.,[.,[[[[.,[.,.]],.],.],.]]] => [[[[[]],[],[],[]]]] => 4
[1,7,4,2,3,6,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,4,2,5,3,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[1,7,4,2,5,6,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,4,2,6,3,5] => [1,2,7,5,6,3,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,4,2,6,5,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,4,3,2,5,6] => [1,2,7,6,5,3,4] => [.,[.,[[[[.,[.,.]],.],.],.]]] => [[[[[]],[],[],[]]]] => 4
[1,7,4,3,2,6,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,4,3,5,2,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[1,7,4,3,5,6,2] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,4,3,6,2,5] => [1,2,7,5,6,3,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,4,3,6,5,2] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,4,5,2,3,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[1,7,4,5,2,6,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,4,5,3,2,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[1,7,4,5,3,6,2] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,4,5,6,2,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,4,5,6,3,2] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[1,7,4,6,2,3,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,4,6,2,5,3] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[1,7,4,6,3,2,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,4,6,3,5,2] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[1,7,4,6,5,2,3] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[1,7,4,6,5,3,2] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[1,7,5,2,3,4,6] => [1,2,7,6,4,3,5] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[1,7,5,2,3,6,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,5,2,4,3,6] => [1,2,7,6,3,5,4] => [.,[.,[[[.,[[.,.],.]],.],.]]] => [[[[[],[]],[],[]]]] => 4
[1,7,5,2,4,6,3] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,2,6,3,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,5,2,6,4,3] => [1,2,7,3,5,6,4] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,3,2,4,6] => [1,2,7,6,4,3,5] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[1,7,5,3,2,6,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,5,3,4,2,6] => [1,2,7,6,3,5,4] => [.,[.,[[[.,[[.,.],.]],.],.]]] => [[[[[],[]],[],[]]]] => 4
[1,7,5,3,4,6,2] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,3,6,2,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,5,3,6,4,2] => [1,2,7,3,5,6,4] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,4,2,3,6] => [1,2,7,6,3,5,4] => [.,[.,[[[.,[[.,.],.]],.],.]]] => [[[[[],[]],[],[]]]] => 4
[1,7,5,4,2,6,3] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,4,3,2,6] => [1,2,7,6,3,5,4] => [.,[.,[[[.,[[.,.],.]],.],.]]] => [[[[[],[]],[],[]]]] => 4
[1,7,5,4,3,6,2] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,4,6,2,3] => [1,2,7,3,5,6,4] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,4,6,3,2] => [1,2,7,3,5,6,4] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,6,2,3,4] => [1,2,7,4,6,3,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,5,6,2,4,3] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,6,3,2,4] => [1,2,7,4,6,3,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,5,6,3,4,2] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,6,4,2,3] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,5,6,4,3,2] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[1,7,6,2,3,4,5] => [1,2,7,5,3,6,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,6,2,3,5,4] => [1,2,7,4,3,6,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,6,2,4,3,5] => [1,2,7,5,4,3,6] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[1,7,6,2,4,5,3] => [1,2,7,3,6,5,4] => [.,[.,[[.,[[[.,.],.],.]],.]]] => [[[[[],[],[]],[]]]] => 4
[1,7,6,2,5,3,4] => [1,2,7,4,3,6,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,6,2,5,4,3] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[1,7,6,3,2,4,5] => [1,2,7,5,3,6,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,6,3,2,5,4] => [1,2,7,4,3,6,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,6,3,4,2,5] => [1,2,7,5,4,3,6] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[1,7,6,3,4,5,2] => [1,2,7,3,6,5,4] => [.,[.,[[.,[[[.,.],.],.]],.]]] => [[[[[],[],[]],[]]]] => 4
[1,7,6,3,5,2,4] => [1,2,7,4,3,6,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[1,7,6,3,5,4,2] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[1,7,6,4,2,3,5] => [1,2,7,5,3,6,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,6,4,2,5,3] => [1,2,7,3,6,5,4] => [.,[.,[[.,[[[.,.],.],.]],.]]] => [[[[[],[],[]],[]]]] => 4
[1,7,6,4,3,2,5] => [1,2,7,5,3,6,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[1,7,6,4,3,5,2] => [1,2,7,3,6,5,4] => [.,[.,[[.,[[[.,.],.],.]],.]]] => [[[[[],[],[]],[]]]] => 4
[1,7,6,4,5,2,3] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[1,7,6,4,5,3,2] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[1,7,6,5,2,3,4] => [1,2,7,4,5,3,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,6,5,2,4,3] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[1,7,6,5,3,2,4] => [1,2,7,4,5,3,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[1,7,6,5,3,4,2] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[1,7,6,5,4,2,3] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[1,7,6,5,4,3,2] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[2,1,3,4,5,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,3,4,5,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,3,4,6,5,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,3,4,6,7,5] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,3,4,7,5,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,1,3,4,7,6,5] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,1,3,5,4,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,3,5,4,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,3,5,6,4,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,3,5,6,7,4] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,3,5,7,4,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,1,3,5,7,6,4] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,1,3,6,4,5,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,3,6,4,7,5] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,3,6,5,4,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,3,6,5,7,4] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,3,6,7,4,5] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,3,6,7,5,4] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,3,7,4,5,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[2,1,3,7,4,6,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,1,3,7,5,4,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[2,1,3,7,5,6,4] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,1,3,7,6,4,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,1,3,7,6,5,4] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,1,4,3,5,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,4,3,5,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,4,3,6,5,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,4,3,6,7,5] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,4,3,7,5,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,1,4,3,7,6,5] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,1,4,5,3,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,4,5,3,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,4,5,6,3,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,4,5,6,7,3] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,1,4,5,7,3,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,1,4,5,7,6,3] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,1,4,6,3,5,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,4,6,3,7,5] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,4,6,5,3,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,4,6,5,7,3] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,4,6,7,3,5] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,4,6,7,5,3] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,1,4,7,3,5,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[2,1,4,7,3,6,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,1,4,7,5,3,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[2,1,4,7,5,6,3] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,1,4,7,6,3,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,1,4,7,6,5,3] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,1,5,3,4,6,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,3,4,7,6] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,3,6,4,7] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,3,6,7,4] => [1,2,3,5,6,7,4] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,3,7,4,6] => [1,2,3,5,7,6,4] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,3,7,6,4] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,4,3,6,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,4,3,7,6] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,4,6,3,7] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,4,6,7,3] => [1,2,3,5,6,7,4] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,4,7,3,6] => [1,2,3,5,7,6,4] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,4,7,6,3] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,6,3,4,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,6,3,7,4] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,6,4,3,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,6,4,7,3] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,6,7,3,4] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,6,7,4,3] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,7,3,4,6] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,7,3,6,4] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,7,4,3,6] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,7,4,6,3] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,1,5,7,6,3,4] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,5,7,6,4,3] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,1,6,3,4,5,7] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,1,6,3,4,7,5] => [1,2,3,6,7,5,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,1,6,3,5,4,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,3,5,7,4] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,3,7,4,5] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,3,7,5,4] => [1,2,3,6,5,7,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,1,6,4,3,5,7] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,1,6,4,3,7,5] => [1,2,3,6,7,5,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,1,6,4,5,3,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,4,5,7,3] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,4,7,3,5] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,4,7,5,3] => [1,2,3,6,5,7,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,1,6,5,3,4,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,5,3,7,4] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,5,4,3,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,5,4,7,3] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,5,7,3,4] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,5,7,4,3] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,7,3,4,5] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,7,3,5,4] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,1,6,7,4,3,5] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,7,4,5,3] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,1,6,7,5,3,4] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,6,7,5,4,3] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,1,7,3,4,5,6] => [1,2,3,7,6,5,4] => [.,[.,[.,[[[[.,.],.],.],.]]]] => [[[[[],[],[],[]]]]] => 4
[2,1,7,3,4,6,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,1,7,3,5,4,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[2,1,7,3,5,6,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,1,7,3,6,4,5] => [1,2,3,7,5,6,4] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,1,7,3,6,5,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,1,7,4,3,5,6] => [1,2,3,7,6,5,4] => [.,[.,[.,[[[[.,.],.],.],.]]]] => [[[[[],[],[],[]]]]] => 4
[2,1,7,4,3,6,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,1,7,4,5,3,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[2,1,7,4,5,6,3] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,1,7,4,6,3,5] => [1,2,3,7,5,6,4] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,1,7,4,6,5,3] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,1,7,5,3,4,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[2,1,7,5,3,6,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,1,7,5,4,3,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[2,1,7,5,4,6,3] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,1,7,5,6,3,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,1,7,5,6,4,3] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,1,7,6,3,4,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,1,7,6,3,5,4] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[2,1,7,6,4,3,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,1,7,6,4,5,3] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[2,1,7,6,5,3,4] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[2,1,7,6,5,4,3] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[2,3,1,4,5,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,1,4,5,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,1,4,6,5,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,1,4,6,7,5] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,1,4,7,5,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,3,1,4,7,6,5] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,3,1,5,4,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,1,5,4,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,1,5,6,4,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,1,5,6,7,4] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,1,5,7,4,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,3,1,5,7,6,4] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,3,1,6,4,5,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,1,6,4,7,5] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,1,6,5,4,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,1,6,5,7,4] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,1,6,7,4,5] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,1,6,7,5,4] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,1,7,4,5,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[2,3,1,7,4,6,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,3,1,7,5,4,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[2,3,1,7,5,6,4] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,3,1,7,6,4,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,3,1,7,6,5,4] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,3,4,1,5,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,4,1,5,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,4,1,6,5,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,4,1,6,7,5] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,4,1,7,5,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,3,4,1,7,6,5] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,3,4,5,1,6,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,4,5,1,7,6] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,4,5,6,1,7] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,4,5,6,7,1] => [1,2,3,4,5,6,7] => [.,[.,[.,[.,[.,[.,[.,.]]]]]]] => [[[[[[[[]]]]]]]] => 1
[2,3,4,5,7,1,6] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,3,4,5,7,6,1] => [1,2,3,4,5,7,6] => [.,[.,[.,[.,[.,[[.,.],.]]]]]] => [[[[[[[],[]]]]]]] => 2
[2,3,4,6,1,5,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,4,6,1,7,5] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,4,6,5,1,7] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,4,6,5,7,1] => [1,2,3,4,6,7,5] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,4,6,7,1,5] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,4,6,7,5,1] => [1,2,3,4,6,5,7] => [.,[.,[.,[.,[[.,.],[.,.]]]]]] => [[[[[[],[[]]]]]]] => 2
[2,3,4,7,1,5,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[2,3,4,7,1,6,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,3,4,7,5,1,6] => [1,2,3,4,7,6,5] => [.,[.,[.,[.,[[[.,.],.],.]]]]] => [[[[[[],[],[]]]]]] => 3
[2,3,4,7,5,6,1] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,3,4,7,6,1,5] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,3,4,7,6,5,1] => [1,2,3,4,7,5,6] => [.,[.,[.,[.,[[.,[.,.]],.]]]]] => [[[[[[[]],[]]]]]] => 2
[2,3,5,1,4,6,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,1,4,7,6] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,1,6,4,7] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,1,6,7,4] => [1,2,3,5,6,7,4] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,1,7,4,6] => [1,2,3,5,7,6,4] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,1,7,6,4] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,4,1,6,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,4,1,7,6] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,4,6,1,7] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,4,6,7,1] => [1,2,3,5,6,7,4] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,4,7,1,6] => [1,2,3,5,7,6,4] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,4,7,6,1] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,6,1,4,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,6,1,7,4] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,6,4,1,7] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,6,4,7,1] => [1,2,3,5,4,6,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,6,7,1,4] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,6,7,4,1] => [1,2,3,5,7,4,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,7,1,4,6] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,7,1,6,4] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,7,4,1,6] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,7,4,6,1] => [1,2,3,5,4,7,6] => [.,[.,[.,[[.,.],[[.,.],.]]]]] => [[[[[],[[],[]]]]]] => 3
[2,3,5,7,6,1,4] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,5,7,6,4,1] => [1,2,3,5,6,4,7] => [.,[.,[.,[[.,.],[.,[.,.]]]]]] => [[[[[],[[[]]]]]]] => 2
[2,3,6,1,4,5,7] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,3,6,1,4,7,5] => [1,2,3,6,7,5,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,3,6,1,5,4,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,1,5,7,4] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,1,7,4,5] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,1,7,5,4] => [1,2,3,6,5,7,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,3,6,4,1,5,7] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,3,6,4,1,7,5] => [1,2,3,6,7,5,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,3,6,4,5,1,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,4,5,7,1] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,4,7,1,5] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,4,7,5,1] => [1,2,3,6,5,7,4] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,3,6,5,1,4,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,5,1,7,4] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,5,4,1,7] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,5,4,7,1] => [1,2,3,6,7,4,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,5,7,1,4] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,5,7,4,1] => [1,2,3,6,4,5,7] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,7,1,4,5] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,7,1,5,4] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,3,6,7,4,1,5] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,7,4,5,1] => [1,2,3,6,5,4,7] => [.,[.,[.,[[[.,.],.],[.,.]]]]] => [[[[[],[],[[]]]]]] => 3
[2,3,6,7,5,1,4] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,6,7,5,4,1] => [1,2,3,6,4,7,5] => [.,[.,[.,[[.,[.,.]],[.,.]]]]] => [[[[[[]],[[]]]]]] => 2
[2,3,7,1,4,5,6] => [1,2,3,7,6,5,4] => [.,[.,[.,[[[[.,.],.],.],.]]]] => [[[[[],[],[],[]]]]] => 4
[2,3,7,1,4,6,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,3,7,1,5,4,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[2,3,7,1,5,6,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,3,7,1,6,4,5] => [1,2,3,7,5,6,4] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,3,7,1,6,5,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,3,7,4,1,5,6] => [1,2,3,7,6,5,4] => [.,[.,[.,[[[[.,.],.],.],.]]]] => [[[[[],[],[],[]]]]] => 4
[2,3,7,4,1,6,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,3,7,4,5,1,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[2,3,7,4,5,6,1] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,3,7,4,6,1,5] => [1,2,3,7,5,6,4] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,3,7,4,6,5,1] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,3,7,5,1,4,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[2,3,7,5,1,6,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,3,7,5,4,1,6] => [1,2,3,7,6,4,5] => [.,[.,[.,[[[.,[.,.]],.],.]]]] => [[[[[[]],[],[]]]]] => 3
[2,3,7,5,4,6,1] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,3,7,5,6,1,4] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,3,7,5,6,4,1] => [1,2,3,7,4,5,6] => [.,[.,[.,[[.,[.,[.,.]]],.]]]] => [[[[[[[]]],[]]]]] => 2
[2,3,7,6,1,4,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,3,7,6,1,5,4] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[2,3,7,6,4,1,5] => [1,2,3,7,5,4,6] => [.,[.,[.,[[[.,.],[.,.]],.]]]] => [[[[[],[[]],[]]]]] => 3
[2,3,7,6,4,5,1] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[2,3,7,6,5,1,4] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[2,3,7,6,5,4,1] => [1,2,3,7,4,6,5] => [.,[.,[.,[[.,[[.,.],.]],.]]]] => [[[[[[],[]],[]]]]] => 3
[2,4,1,3,5,6,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,1,3,5,7,6] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,1,3,6,5,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,1,3,6,7,5] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,1,3,7,5,6] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,1,3,7,6,5] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,1,5,3,6,7] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,1,5,3,7,6] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,1,5,6,3,7] => [1,2,4,5,6,3,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,1,5,6,7,3] => [1,2,4,5,6,7,3] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,1,5,7,3,6] => [1,2,4,5,7,6,3] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,1,5,7,6,3] => [1,2,4,5,7,3,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,1,6,3,5,7] => [1,2,4,6,5,3,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,1,6,3,7,5] => [1,2,4,6,7,5,3] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,1,6,5,3,7] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,1,6,5,7,3] => [1,2,4,6,7,3,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,1,6,7,3,5] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,1,6,7,5,3] => [1,2,4,6,5,7,3] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,1,7,3,5,6] => [1,2,4,7,6,5,3] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,1,7,3,6,5] => [1,2,4,7,5,3,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,1,7,5,3,6] => [1,2,4,7,6,3,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,1,7,5,6,3] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,1,7,6,3,5] => [1,2,4,7,5,6,3] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,1,7,6,5,3] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,3,1,5,6,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,3,1,5,7,6] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,3,1,6,5,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,3,1,6,7,5] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,3,1,7,5,6] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,3,1,7,6,5] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,3,5,1,6,7] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,3,5,1,7,6] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,3,5,6,1,7] => [1,2,4,5,6,3,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,3,5,6,7,1] => [1,2,4,5,6,7,3] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,3,5,7,1,6] => [1,2,4,5,7,6,3] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,3,5,7,6,1] => [1,2,4,5,7,3,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,3,6,1,5,7] => [1,2,4,6,5,3,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,3,6,1,7,5] => [1,2,4,6,7,5,3] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,3,6,5,1,7] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,3,6,5,7,1] => [1,2,4,6,7,3,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,3,6,7,1,5] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,3,6,7,5,1] => [1,2,4,6,5,7,3] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,3,7,1,5,6] => [1,2,4,7,6,5,3] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,3,7,1,6,5] => [1,2,4,7,5,3,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,3,7,5,1,6] => [1,2,4,7,6,3,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,3,7,5,6,1] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,3,7,6,1,5] => [1,2,4,7,5,6,3] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,3,7,6,5,1] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,5,1,3,6,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,5,1,3,7,6] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,5,1,6,3,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,5,1,6,7,3] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,5,1,7,3,6] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,5,1,7,6,3] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,5,3,1,6,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,5,3,1,7,6] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,5,3,6,1,7] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,5,3,6,7,1] => [1,2,4,3,5,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,5,3,7,1,6] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,5,3,7,6,1] => [1,2,4,3,5,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,5,6,1,3,7] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,5,6,1,7,3] => [1,2,4,6,7,3,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,5,6,3,1,7] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,5,6,3,7,1] => [1,2,4,6,7,3,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,5,6,7,1,3] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,5,6,7,3,1] => [1,2,4,6,3,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,5,7,1,3,6] => [1,2,4,7,6,3,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,5,7,1,6,3] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,5,7,3,1,6] => [1,2,4,7,6,3,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,5,7,3,6,1] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,5,7,6,1,3] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,5,7,6,3,1] => [1,2,4,7,3,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,6,1,3,5,7] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,1,3,7,5] => [1,2,4,3,6,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,1,5,3,7] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,1,5,7,3] => [1,2,4,3,6,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,1,7,3,5] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,1,7,5,3] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,3,1,5,7] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,3,1,7,5] => [1,2,4,3,6,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,3,5,1,7] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,3,5,7,1] => [1,2,4,3,6,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,3,7,1,5] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,3,7,5,1] => [1,2,4,3,6,5,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,6,5,1,3,7] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,6,5,1,7,3] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,6,5,3,1,7] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,6,5,3,7,1] => [1,2,4,5,3,6,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,6,5,7,1,3] => [1,2,4,5,7,3,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,6,5,7,3,1] => [1,2,4,5,7,3,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,6,7,1,3,5] => [1,2,4,7,5,3,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,6,7,1,5,3] => [1,2,4,7,3,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,6,7,3,1,5] => [1,2,4,7,5,3,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,6,7,3,5,1] => [1,2,4,7,3,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,6,7,5,1,3] => [1,2,4,7,3,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,6,7,5,3,1] => [1,2,4,7,3,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,7,1,3,5,6] => [1,2,4,3,7,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,7,1,3,6,5] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,7,1,5,3,6] => [1,2,4,3,7,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,7,1,5,6,3] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,7,1,6,3,5] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,7,1,6,5,3] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,7,3,1,5,6] => [1,2,4,3,7,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,7,3,1,6,5] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,7,3,5,1,6] => [1,2,4,3,7,6,5] => [.,[.,[[.,.],[[[.,.],.],.]]]] => [[[[],[[],[],[]]]]] => 4
[2,4,7,3,5,6,1] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,7,3,6,1,5] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,7,3,6,5,1] => [1,2,4,3,7,5,6] => [.,[.,[[.,.],[[.,[.,.]],.]]]] => [[[[],[[[]],[]]]]] => 3
[2,4,7,5,1,3,6] => [1,2,4,5,3,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,7,5,1,6,3] => [1,2,4,5,3,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,7,5,3,1,6] => [1,2,4,5,3,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,7,5,3,6,1] => [1,2,4,5,3,7,6] => [.,[.,[[.,.],[.,[[.,.],.]]]]] => [[[[],[[[],[]]]]]] => 3
[2,4,7,5,6,1,3] => [1,2,4,5,6,3,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,7,5,6,3,1] => [1,2,4,5,6,3,7] => [.,[.,[[.,.],[.,[.,[.,.]]]]]] => [[[[],[[[[]]]]]]] => 2
[2,4,7,6,1,3,5] => [1,2,4,6,3,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,7,6,1,5,3] => [1,2,4,6,5,3,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,7,6,3,1,5] => [1,2,4,6,3,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,7,6,3,5,1] => [1,2,4,6,5,3,7] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,7,6,5,1,3] => [1,2,4,6,3,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,4,7,6,5,3,1] => [1,2,4,6,3,7,5] => [.,[.,[[.,.],[[.,.],[.,.]]]]] => [[[[],[[],[[]]]]]] => 3
[2,5,1,3,4,6,7] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,1,3,4,7,6] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,1,3,6,4,7] => [1,2,5,6,4,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,1,3,6,7,4] => [1,2,5,6,7,4,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,1,3,7,4,6] => [1,2,5,7,6,4,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,1,3,7,6,4] => [1,2,5,7,4,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,1,4,3,6,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,1,4,3,7,6] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,1,4,6,3,7] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,1,4,6,7,3] => [1,2,5,6,7,3,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,1,4,7,3,6] => [1,2,5,7,6,3,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,1,4,7,6,3] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,1,6,3,4,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,1,6,3,7,4] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,1,6,4,3,7] => [1,2,5,4,6,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,1,6,4,7,3] => [1,2,5,4,6,7,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,1,6,7,3,4] => [1,2,5,7,4,6,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,1,6,7,4,3] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,1,7,3,4,6] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,1,7,3,6,4] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,1,7,4,3,6] => [1,2,5,4,7,6,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,1,7,4,6,3] => [1,2,5,4,7,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,1,7,6,3,4] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,1,7,6,4,3] => [1,2,5,6,4,7,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,3,1,4,6,7] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,3,1,4,7,6] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,3,1,6,4,7] => [1,2,5,6,4,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,3,1,6,7,4] => [1,2,5,6,7,4,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,3,1,7,4,6] => [1,2,5,7,6,4,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,3,1,7,6,4] => [1,2,5,7,4,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,3,4,1,6,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,3,4,1,7,6] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,3,4,6,1,7] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,3,4,6,7,1] => [1,2,5,6,7,3,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,3,4,7,1,6] => [1,2,5,7,6,3,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,3,4,7,6,1] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,3,6,1,4,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,3,6,1,7,4] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,3,6,4,1,7] => [1,2,5,4,6,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,3,6,4,7,1] => [1,2,5,4,6,7,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,3,6,7,1,4] => [1,2,5,7,4,6,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,3,6,7,4,1] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,3,7,1,4,6] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,3,7,1,6,4] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,3,7,4,1,6] => [1,2,5,4,7,6,3] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,3,7,4,6,1] => [1,2,5,4,7,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,3,7,6,1,4] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,3,7,6,4,1] => [1,2,5,6,4,7,3] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,4,1,3,6,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,1,3,7,6] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,1,6,3,7] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,1,6,7,3] => [1,2,5,6,7,3,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,1,7,3,6] => [1,2,5,7,6,3,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,1,7,6,3] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,3,1,6,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,3,1,7,6] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,3,6,1,7] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,3,6,7,1] => [1,2,5,6,7,3,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,3,7,1,6] => [1,2,5,7,6,3,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,3,7,6,1] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,6,1,3,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,6,1,7,3] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,6,3,1,7] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,6,3,7,1] => [1,2,5,3,4,6,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,6,7,1,3] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,6,7,3,1] => [1,2,5,7,3,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,7,1,3,6] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,7,1,6,3] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,7,3,1,6] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,7,3,6,1] => [1,2,5,3,4,7,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,4,7,6,1,3] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,4,7,6,3,1] => [1,2,5,6,3,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,1,3,4,7] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,1,3,7,4] => [1,2,5,3,6,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,1,4,3,7] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,6,1,4,7,3] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,6,1,7,3,4] => [1,2,5,7,4,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,6,1,7,4,3] => [1,2,5,7,3,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,6,3,1,4,7] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,3,1,7,4] => [1,2,5,3,6,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,3,4,1,7] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,6,3,4,7,1] => [1,2,5,4,3,6,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,6,3,7,1,4] => [1,2,5,7,4,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,6,3,7,4,1] => [1,2,5,7,3,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,6,4,1,3,7] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,4,1,7,3] => [1,2,5,3,6,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,4,3,1,7] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,4,3,7,1] => [1,2,5,3,6,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,4,7,1,3] => [1,2,5,7,3,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,6,4,7,3,1] => [1,2,5,7,3,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,6,7,1,3,4] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,7,1,4,3] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,7,3,1,4] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,7,3,4,1] => [1,2,5,3,6,4,7] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,6,7,4,1,3] => [1,2,5,4,7,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,6,7,4,3,1] => [1,2,5,4,7,3,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,7,1,3,4,6] => [1,2,5,3,7,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,1,3,6,4] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,1,4,3,6] => [1,2,5,4,3,7,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,7,1,4,6,3] => [1,2,5,4,3,7,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,7,1,6,3,4] => [1,2,5,6,3,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,7,1,6,4,3] => [1,2,5,6,4,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,7,3,1,4,6] => [1,2,5,3,7,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,3,1,6,4] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,3,4,1,6] => [1,2,5,4,3,7,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,7,3,4,6,1] => [1,2,5,4,3,7,6] => [.,[.,[[[.,.],.],[[.,.],.]]]] => [[[[],[],[[],[]]]]] => 4
[2,5,7,3,6,1,4] => [1,2,5,6,3,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,7,3,6,4,1] => [1,2,5,6,4,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,7,4,1,3,6] => [1,2,5,3,7,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,4,1,6,3] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,4,3,1,6] => [1,2,5,3,7,6,4] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,4,3,6,1] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,4,6,1,3] => [1,2,5,6,3,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,7,4,6,3,1] => [1,2,5,6,3,7,4] => [.,[.,[[.,[.,.]],[.,[.,.]]]]] => [[[[[]],[[[]]]]]] => 2
[2,5,7,6,1,3,4] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,6,1,4,3] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,6,3,1,4] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,6,3,4,1] => [1,2,5,3,7,4,6] => [.,[.,[[.,[.,.]],[[.,.],.]]]] => [[[[[]],[[],[]]]]] => 3
[2,5,7,6,4,1,3] => [1,2,5,4,6,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,5,7,6,4,3,1] => [1,2,5,4,6,3,7] => [.,[.,[[[.,.],.],[.,[.,.]]]]] => [[[[],[],[[[]]]]]] => 3
[2,6,1,3,4,5,7] => [1,2,6,5,4,3,7] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,1,3,4,7,5] => [1,2,6,7,5,4,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,1,3,5,4,7] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,1,3,5,7,4] => [1,2,6,7,4,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,1,3,7,4,5] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,1,3,7,5,4] => [1,2,6,5,7,4,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,1,4,3,5,7] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,1,4,3,7,5] => [1,2,6,7,5,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,1,4,5,3,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,1,4,5,7,3] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,1,4,7,3,5] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,1,4,7,5,3] => [1,2,6,5,7,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,1,5,3,4,7] => [1,2,6,4,5,3,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,1,5,3,7,4] => [1,2,6,7,4,5,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,1,5,4,3,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,1,5,4,7,3] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,1,5,7,3,4] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,1,5,7,4,3] => [1,2,6,4,5,7,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,1,7,3,4,5] => [1,2,6,4,7,5,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,1,7,3,5,4] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,1,7,4,3,5] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,1,7,4,5,3] => [1,2,6,5,4,7,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,1,7,5,3,4] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,1,7,5,4,3] => [1,2,6,4,7,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,3,1,4,5,7] => [1,2,6,5,4,3,7] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,3,1,4,7,5] => [1,2,6,7,5,4,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,3,1,5,4,7] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,3,1,5,7,4] => [1,2,6,7,4,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,3,1,7,4,5] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,3,1,7,5,4] => [1,2,6,5,7,4,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,3,4,1,5,7] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,3,4,1,7,5] => [1,2,6,7,5,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,3,4,5,1,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,3,4,5,7,1] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,3,4,7,1,5] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,3,4,7,5,1] => [1,2,6,5,7,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,3,5,1,4,7] => [1,2,6,4,5,3,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,3,5,1,7,4] => [1,2,6,7,4,5,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,3,5,4,1,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,3,5,4,7,1] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,3,5,7,1,4] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,3,5,7,4,1] => [1,2,6,4,5,7,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,3,7,1,4,5] => [1,2,6,4,7,5,3] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,3,7,1,5,4] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,3,7,4,1,5] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,3,7,4,5,1] => [1,2,6,5,4,7,3] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,3,7,5,1,4] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,3,7,5,4,1] => [1,2,6,4,7,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,4,1,3,5,7] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,4,1,3,7,5] => [1,2,6,7,5,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,4,1,5,3,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,1,5,7,3] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,1,7,3,5] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,1,7,5,3] => [1,2,6,5,7,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,4,3,1,5,7] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,4,3,1,7,5] => [1,2,6,7,5,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,4,3,5,1,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,3,5,7,1] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,3,7,1,5] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,3,7,5,1] => [1,2,6,5,7,3,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,4,5,1,3,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,5,1,7,3] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,5,3,1,7] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,5,3,7,1] => [1,2,6,7,3,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,5,7,1,3] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,5,7,3,1] => [1,2,6,3,4,5,7] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,7,1,3,5] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,7,1,5,3] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,4,7,3,1,5] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,7,3,5,1] => [1,2,6,5,3,4,7] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,4,7,5,1,3] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,4,7,5,3,1] => [1,2,6,3,4,7,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,5,1,3,4,7] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,5,1,3,7,4] => [1,2,6,7,4,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,5,1,4,3,7] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,1,4,7,3] => [1,2,6,7,3,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,1,7,3,4] => [1,2,6,3,5,7,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,1,7,4,3] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,5,3,1,4,7] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,5,3,1,7,4] => [1,2,6,7,4,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,5,3,4,1,7] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,3,4,7,1] => [1,2,6,7,3,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,3,7,1,4] => [1,2,6,3,5,7,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,3,7,4,1] => [1,2,6,4,3,5,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,5,4,1,3,7] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,4,1,7,3] => [1,2,6,7,3,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,4,3,1,7] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,4,3,7,1] => [1,2,6,7,3,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,4,7,1,3] => [1,2,6,3,5,7,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,4,7,3,1] => [1,2,6,3,5,7,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,7,1,3,4] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,7,1,4,3] => [1,2,6,4,7,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,5,7,3,1,4] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,7,3,4,1] => [1,2,6,4,7,3,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,5,7,4,1,3] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,5,7,4,3,1] => [1,2,6,3,5,4,7] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,7,1,3,4,5] => [1,2,6,4,3,7,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,7,1,3,5,4] => [1,2,6,5,3,7,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,7,1,4,3,5] => [1,2,6,3,7,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,7,1,4,5,3] => [1,2,6,5,4,3,7] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,7,1,5,3,4] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,7,1,5,4,3] => [1,2,6,4,3,7,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,7,3,1,4,5] => [1,2,6,4,3,7,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,7,3,1,5,4] => [1,2,6,5,3,7,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,7,3,4,1,5] => [1,2,6,3,7,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,7,3,4,5,1] => [1,2,6,5,4,3,7] => [.,[.,[[[[.,.],.],.],[.,.]]]] => [[[[],[],[],[[]]]]] => 4
[2,6,7,3,5,1,4] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,7,3,5,4,1] => [1,2,6,4,3,7,5] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,7,4,1,3,5] => [1,2,6,3,7,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,7,4,1,5,3] => [1,2,6,5,3,7,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,7,4,3,1,5] => [1,2,6,3,7,5,4] => [.,[.,[[.,[[.,.],.]],[.,.]]]] => [[[[[],[]],[[]]]]] => 3
[2,6,7,4,3,5,1] => [1,2,6,5,3,7,4] => [.,[.,[[[.,[.,.]],.],[.,.]]]] => [[[[[]],[],[[]]]]] => 3
[2,6,7,4,5,1,3] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,7,4,5,3,1] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,7,5,1,3,4] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,7,5,1,4,3] => [1,2,6,4,5,3,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,7,5,3,1,4] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,7,5,3,4,1] => [1,2,6,4,5,3,7] => [.,[.,[[[.,.],[.,.]],[.,.]]]] => [[[[],[[]],[[]]]]] => 3
[2,6,7,5,4,1,3] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,6,7,5,4,3,1] => [1,2,6,3,7,4,5] => [.,[.,[[.,[.,[.,.]]],[.,.]]]] => [[[[[[]]],[[]]]]] => 2
[2,7,1,3,4,5,6] => [1,2,7,6,5,4,3] => [.,[.,[[[[[.,.],.],.],.],.]]] => [[[[],[],[],[],[]]]] => 5
[2,7,1,3,4,6,5] => [1,2,7,5,4,3,6] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[2,7,1,3,5,4,6] => [1,2,7,6,4,3,5] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[2,7,1,3,5,6,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,1,3,6,4,5] => [1,2,7,5,6,4,3] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[2,7,1,3,6,5,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,1,4,3,5,6] => [1,2,7,6,5,3,4] => [.,[.,[[[[.,[.,.]],.],.],.]]] => [[[[[]],[],[],[]]]] => 4
[2,7,1,4,3,6,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,1,4,5,3,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[2,7,1,4,5,6,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,1,4,6,3,5] => [1,2,7,5,6,3,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,1,4,6,5,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,1,5,3,4,6] => [1,2,7,6,4,5,3] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[2,7,1,5,3,6,4] => [1,2,7,4,5,3,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,1,5,4,3,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[2,7,1,5,4,6,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,1,5,6,3,4] => [1,2,7,4,5,6,3] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,1,5,6,4,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,1,6,3,4,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,1,6,3,5,4] => [1,2,7,4,6,5,3] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,1,6,4,3,5] => [1,2,7,5,4,6,3] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[2,7,1,6,4,5,3] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[2,7,1,6,5,3,4] => [1,2,7,4,6,3,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,1,6,5,4,3] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[2,7,3,1,4,5,6] => [1,2,7,6,5,4,3] => [.,[.,[[[[[.,.],.],.],.],.]]] => [[[[],[],[],[],[]]]] => 5
[2,7,3,1,4,6,5] => [1,2,7,5,4,3,6] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[2,7,3,1,5,4,6] => [1,2,7,6,4,3,5] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[2,7,3,1,5,6,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,3,1,6,4,5] => [1,2,7,5,6,4,3] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[2,7,3,1,6,5,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,3,4,1,5,6] => [1,2,7,6,5,3,4] => [.,[.,[[[[.,[.,.]],.],.],.]]] => [[[[[]],[],[],[]]]] => 4
[2,7,3,4,1,6,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,3,4,5,1,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[2,7,3,4,5,6,1] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,3,4,6,1,5] => [1,2,7,5,6,3,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,3,4,6,5,1] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,3,5,1,4,6] => [1,2,7,6,4,5,3] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[2,7,3,5,1,6,4] => [1,2,7,4,5,3,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,3,5,4,1,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[2,7,3,5,4,6,1] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,3,5,6,1,4] => [1,2,7,4,5,6,3] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,3,5,6,4,1] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,3,6,1,4,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,3,6,1,5,4] => [1,2,7,4,6,5,3] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,3,6,4,1,5] => [1,2,7,5,4,6,3] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[2,7,3,6,4,5,1] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[2,7,3,6,5,1,4] => [1,2,7,4,6,3,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,3,6,5,4,1] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[2,7,4,1,3,5,6] => [1,2,7,6,5,3,4] => [.,[.,[[[[.,[.,.]],.],.],.]]] => [[[[[]],[],[],[]]]] => 4
[2,7,4,1,3,6,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,4,1,5,3,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[2,7,4,1,5,6,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,4,1,6,3,5] => [1,2,7,5,6,3,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,4,1,6,5,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,4,3,1,5,6] => [1,2,7,6,5,3,4] => [.,[.,[[[[.,[.,.]],.],.],.]]] => [[[[[]],[],[],[]]]] => 4
[2,7,4,3,1,6,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,4,3,5,1,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[2,7,4,3,5,6,1] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,4,3,6,1,5] => [1,2,7,5,6,3,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,4,3,6,5,1] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,4,5,1,3,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[2,7,4,5,1,6,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,4,5,3,1,6] => [1,2,7,6,3,4,5] => [.,[.,[[[.,[.,[.,.]]],.],.]]] => [[[[[[]]],[],[]]]] => 3
[2,7,4,5,3,6,1] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,4,5,6,1,3] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,4,5,6,3,1] => [1,2,7,3,4,5,6] => [.,[.,[[.,[.,[.,[.,.]]]],.]]] => [[[[[[[]]]],[]]]] => 2
[2,7,4,6,1,3,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,4,6,1,5,3] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[2,7,4,6,3,1,5] => [1,2,7,5,3,4,6] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,4,6,3,5,1] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[2,7,4,6,5,1,3] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[2,7,4,6,5,3,1] => [1,2,7,3,4,6,5] => [.,[.,[[.,[.,[[.,.],.]]],.]]] => [[[[[[],[]]],[]]]] => 3
[2,7,5,1,3,4,6] => [1,2,7,6,4,3,5] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[2,7,5,1,3,6,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,5,1,4,3,6] => [1,2,7,6,3,5,4] => [.,[.,[[[.,[[.,.],.]],.],.]]] => [[[[[],[]],[],[]]]] => 4
[2,7,5,1,4,6,3] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,1,6,3,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,5,1,6,4,3] => [1,2,7,3,5,6,4] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,3,1,4,6] => [1,2,7,6,4,3,5] => [.,[.,[[[[.,.],[.,.]],.],.]]] => [[[[],[[]],[],[]]]] => 4
[2,7,5,3,1,6,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,5,3,4,1,6] => [1,2,7,6,3,5,4] => [.,[.,[[[.,[[.,.],.]],.],.]]] => [[[[[],[]],[],[]]]] => 4
[2,7,5,3,4,6,1] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,3,6,1,4] => [1,2,7,4,3,5,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,5,3,6,4,1] => [1,2,7,3,5,6,4] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,4,1,3,6] => [1,2,7,6,3,5,4] => [.,[.,[[[.,[[.,.],.]],.],.]]] => [[[[[],[]],[],[]]]] => 4
[2,7,5,4,1,6,3] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,4,3,1,6] => [1,2,7,6,3,5,4] => [.,[.,[[[.,[[.,.],.]],.],.]]] => [[[[[],[]],[],[]]]] => 4
[2,7,5,4,3,6,1] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,4,6,1,3] => [1,2,7,3,5,6,4] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,4,6,3,1] => [1,2,7,3,5,6,4] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,6,1,3,4] => [1,2,7,4,6,3,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,5,6,1,4,3] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,6,3,1,4] => [1,2,7,4,6,3,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,5,6,3,4,1] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,6,4,1,3] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,5,6,4,3,1] => [1,2,7,3,5,4,6] => [.,[.,[[.,[[.,.],[.,.]]],.]]] => [[[[[],[[]]],[]]]] => 3
[2,7,6,1,3,4,5] => [1,2,7,5,3,6,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,6,1,3,5,4] => [1,2,7,4,3,6,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,6,1,4,3,5] => [1,2,7,5,4,3,6] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[2,7,6,1,4,5,3] => [1,2,7,3,6,5,4] => [.,[.,[[.,[[[.,.],.],.]],.]]] => [[[[[],[],[]],[]]]] => 4
[2,7,6,1,5,3,4] => [1,2,7,4,3,6,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,6,1,5,4,3] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[2,7,6,3,1,4,5] => [1,2,7,5,3,6,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,6,3,1,5,4] => [1,2,7,4,3,6,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,6,3,4,1,5] => [1,2,7,5,4,3,6] => [.,[.,[[[[.,.],.],[.,.]],.]]] => [[[[],[],[[]],[]]]] => 4
[2,7,6,3,4,5,1] => [1,2,7,3,6,5,4] => [.,[.,[[.,[[[.,.],.],.]],.]]] => [[[[[],[],[]],[]]]] => 4
[2,7,6,3,5,1,4] => [1,2,7,4,3,6,5] => [.,[.,[[[.,.],[[.,.],.]],.]]] => [[[[],[[],[]],[]]]] => 4
[2,7,6,3,5,4,1] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[2,7,6,4,1,3,5] => [1,2,7,5,3,6,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,6,4,1,5,3] => [1,2,7,3,6,5,4] => [.,[.,[[.,[[[.,.],.],.]],.]]] => [[[[[],[],[]],[]]]] => 4
[2,7,6,4,3,1,5] => [1,2,7,5,3,6,4] => [.,[.,[[[.,[.,.]],[.,.]],.]]] => [[[[[]],[[]],[]]]] => 3
[2,7,6,4,3,5,1] => [1,2,7,3,6,5,4] => [.,[.,[[.,[[[.,.],.],.]],.]]] => [[[[[],[],[]],[]]]] => 4
[2,7,6,4,5,1,3] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[2,7,6,4,5,3,1] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[2,7,6,5,1,3,4] => [1,2,7,4,5,3,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,6,5,1,4,3] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[2,7,6,5,3,1,4] => [1,2,7,4,5,3,6] => [.,[.,[[[.,.],[.,[.,.]]],.]]] => [[[[],[[[]]],[]]]] => 3
[2,7,6,5,3,4,1] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[2,7,6,5,4,1,3] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[2,7,6,5,4,3,1] => [1,2,7,3,6,4,5] => [.,[.,[[.,[[.,[.,.]],.]],.]]] => [[[[[[]],[]],[]]]] => 3
[3,1,2,4,5,6,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,2,4,5,7,6] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,2,4,6,5,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,2,4,6,7,5] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,2,4,7,5,6] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,1,2,4,7,6,5] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,1,2,5,4,6,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,2,5,4,7,6] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,2,5,6,4,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,2,5,6,7,4] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,2,5,7,4,6] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,1,2,5,7,6,4] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,1,2,6,4,5,7] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,2,6,4,7,5] => [1,3,2,4,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,2,6,5,4,7] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,2,6,5,7,4] => [1,3,2,4,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,2,6,7,4,5] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,2,6,7,5,4] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,2,7,4,5,6] => [1,3,2,4,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,1,2,7,4,6,5] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,1,2,7,5,4,6] => [1,3,2,4,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,1,2,7,5,6,4] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,1,2,7,6,4,5] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,1,2,7,6,5,4] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,1,4,2,5,6,7] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,4,2,5,7,6] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,4,2,6,5,7] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,4,2,6,7,5] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,4,2,7,5,6] => [1,3,4,2,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,1,4,2,7,6,5] => [1,3,4,2,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,1,4,5,2,6,7] => [1,3,4,5,2,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,4,5,2,7,6] => [1,3,4,5,2,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,4,5,6,2,7] => [1,3,4,5,6,2,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,4,5,6,7,2] => [1,3,4,5,6,7,2] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,1,4,5,7,2,6] => [1,3,4,5,7,6,2] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,1,4,5,7,6,2] => [1,3,4,5,7,2,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,1,4,6,2,5,7] => [1,3,4,6,5,2,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,4,6,2,7,5] => [1,3,4,6,7,5,2] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,4,6,5,2,7] => [1,3,4,6,2,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,4,6,5,7,2] => [1,3,4,6,7,2,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,4,6,7,2,5] => [1,3,4,6,2,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,4,6,7,5,2] => [1,3,4,6,5,7,2] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,1,4,7,2,5,6] => [1,3,4,7,6,5,2] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,1,4,7,2,6,5] => [1,3,4,7,5,2,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,1,4,7,5,2,6] => [1,3,4,7,6,2,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,1,4,7,5,6,2] => [1,3,4,7,2,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,1,4,7,6,2,5] => [1,3,4,7,5,6,2] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,1,4,7,6,5,2] => [1,3,4,7,2,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,1,5,2,4,6,7] => [1,3,5,4,2,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,2,4,7,6] => [1,3,5,4,2,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,2,6,4,7] => [1,3,5,6,4,2,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,2,6,7,4] => [1,3,5,6,7,4,2] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,2,7,4,6] => [1,3,5,7,6,4,2] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,2,7,6,4] => [1,3,5,7,4,2,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,4,2,6,7] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,4,2,7,6] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,4,6,2,7] => [1,3,5,6,2,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,4,6,7,2] => [1,3,5,6,7,2,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,4,7,2,6] => [1,3,5,7,6,2,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,4,7,6,2] => [1,3,5,7,2,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,6,2,4,7] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,6,2,7,4] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,6,4,2,7] => [1,3,5,4,6,2,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,6,4,7,2] => [1,3,5,4,6,7,2] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,6,7,2,4] => [1,3,5,7,4,6,2] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,6,7,4,2] => [1,3,5,7,2,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,7,2,4,6] => [1,3,5,2,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,7,2,6,4] => [1,3,5,2,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,7,4,2,6] => [1,3,5,4,7,6,2] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,7,4,6,2] => [1,3,5,4,7,2,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,1,5,7,6,2,4] => [1,3,5,6,2,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,5,7,6,4,2] => [1,3,5,6,4,7,2] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,1,6,2,4,5,7] => [1,3,6,5,4,2,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,1,6,2,4,7,5] => [1,3,6,7,5,4,2] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,1,6,2,5,4,7] => [1,3,6,4,2,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,2,5,7,4] => [1,3,6,7,4,2,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,2,7,4,5] => [1,3,6,4,2,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,2,7,5,4] => [1,3,6,5,7,4,2] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,1,6,4,2,5,7] => [1,3,6,5,2,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,1,6,4,2,7,5] => [1,3,6,7,5,2,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,1,6,4,5,2,7] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,4,5,7,2] => [1,3,6,7,2,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,4,7,2,5] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,4,7,5,2] => [1,3,6,5,7,2,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,1,6,5,2,4,7] => [1,3,6,4,5,2,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,5,2,7,4] => [1,3,6,7,4,5,2] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,5,4,2,7] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,5,4,7,2] => [1,3,6,7,2,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,5,7,2,4] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,5,7,4,2] => [1,3,6,4,5,7,2] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,7,2,4,5] => [1,3,6,4,7,5,2] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,7,2,5,4] => [1,3,6,5,2,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,1,6,7,4,2,5] => [1,3,6,2,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,7,4,5,2] => [1,3,6,5,4,7,2] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,1,6,7,5,2,4] => [1,3,6,2,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,6,7,5,4,2] => [1,3,6,4,7,2,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,1,7,2,4,5,6] => [1,3,7,6,5,4,2] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,1,7,2,4,6,5] => [1,3,7,5,4,2,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,1,7,2,5,4,6] => [1,3,7,6,4,2,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,1,7,2,5,6,4] => [1,3,7,4,2,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,1,7,2,6,4,5] => [1,3,7,5,6,4,2] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,1,7,2,6,5,4] => [1,3,7,4,2,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,1,7,4,2,5,6] => [1,3,7,6,5,2,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,1,7,4,2,6,5] => [1,3,7,5,2,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,1,7,4,5,2,6] => [1,3,7,6,2,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,1,7,4,5,6,2] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,1,7,4,6,2,5] => [1,3,7,5,6,2,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,1,7,4,6,5,2] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,1,7,5,2,4,6] => [1,3,7,6,4,5,2] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,1,7,5,2,6,4] => [1,3,7,4,5,2,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,1,7,5,4,2,6] => [1,3,7,6,2,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,1,7,5,4,6,2] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,1,7,5,6,2,4] => [1,3,7,4,5,6,2] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,1,7,5,6,4,2] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,1,7,6,2,4,5] => [1,3,7,5,2,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,1,7,6,2,5,4] => [1,3,7,4,6,5,2] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,1,7,6,4,2,5] => [1,3,7,5,4,6,2] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,1,7,6,4,5,2] => [1,3,7,2,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,1,7,6,5,2,4] => [1,3,7,4,6,2,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,1,7,6,5,4,2] => [1,3,7,2,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,2,1,4,5,6,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,1,4,5,7,6] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,1,4,6,5,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,1,4,6,7,5] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,1,4,7,5,6] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,2,1,4,7,6,5] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,2,1,5,4,6,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,1,5,4,7,6] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,1,5,6,4,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,1,5,6,7,4] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,1,5,7,4,6] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,2,1,5,7,6,4] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,2,1,6,4,5,7] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,1,6,4,7,5] => [1,3,2,4,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,1,6,5,4,7] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,1,6,5,7,4] => [1,3,2,4,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,1,6,7,4,5] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,1,6,7,5,4] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,1,7,4,5,6] => [1,3,2,4,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,2,1,7,4,6,5] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,2,1,7,5,4,6] => [1,3,2,4,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,2,1,7,5,6,4] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,2,1,7,6,4,5] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,2,1,7,6,5,4] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,2,4,1,5,6,7] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,4,1,5,7,6] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,4,1,6,5,7] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,4,1,6,7,5] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,4,1,7,5,6] => [1,3,4,2,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,2,4,1,7,6,5] => [1,3,4,2,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,2,4,5,1,6,7] => [1,3,4,5,2,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,4,5,1,7,6] => [1,3,4,5,2,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,4,5,6,1,7] => [1,3,4,5,6,2,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,4,5,6,7,1] => [1,3,4,5,6,7,2] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,2,4,5,7,1,6] => [1,3,4,5,7,6,2] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,2,4,5,7,6,1] => [1,3,4,5,7,2,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,2,4,6,1,5,7] => [1,3,4,6,5,2,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,4,6,1,7,5] => [1,3,4,6,7,5,2] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,4,6,5,1,7] => [1,3,4,6,2,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,4,6,5,7,1] => [1,3,4,6,7,2,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,4,6,7,1,5] => [1,3,4,6,2,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,4,6,7,5,1] => [1,3,4,6,5,7,2] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,2,4,7,1,5,6] => [1,3,4,7,6,5,2] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,2,4,7,1,6,5] => [1,3,4,7,5,2,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,2,4,7,5,1,6] => [1,3,4,7,6,2,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,2,4,7,5,6,1] => [1,3,4,7,2,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,2,4,7,6,1,5] => [1,3,4,7,5,6,2] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,2,4,7,6,5,1] => [1,3,4,7,2,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,2,5,1,4,6,7] => [1,3,5,4,2,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,1,4,7,6] => [1,3,5,4,2,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,1,6,4,7] => [1,3,5,6,4,2,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,1,6,7,4] => [1,3,5,6,7,4,2] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,1,7,4,6] => [1,3,5,7,6,4,2] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,1,7,6,4] => [1,3,5,7,4,2,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,4,1,6,7] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,4,1,7,6] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,4,6,1,7] => [1,3,5,6,2,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,4,6,7,1] => [1,3,5,6,7,2,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,4,7,1,6] => [1,3,5,7,6,2,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,4,7,6,1] => [1,3,5,7,2,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,6,1,4,7] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,6,1,7,4] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,6,4,1,7] => [1,3,5,4,6,2,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,6,4,7,1] => [1,3,5,4,6,7,2] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,6,7,1,4] => [1,3,5,7,4,6,2] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,6,7,4,1] => [1,3,5,7,2,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,7,1,4,6] => [1,3,5,2,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,7,1,6,4] => [1,3,5,2,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,7,4,1,6] => [1,3,5,4,7,6,2] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,7,4,6,1] => [1,3,5,4,7,2,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,2,5,7,6,1,4] => [1,3,5,6,2,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,5,7,6,4,1] => [1,3,5,6,4,7,2] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,2,6,1,4,5,7] => [1,3,6,5,4,2,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,2,6,1,4,7,5] => [1,3,6,7,5,4,2] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,2,6,1,5,4,7] => [1,3,6,4,2,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,1,5,7,4] => [1,3,6,7,4,2,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,1,7,4,5] => [1,3,6,4,2,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,1,7,5,4] => [1,3,6,5,7,4,2] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,2,6,4,1,5,7] => [1,3,6,5,2,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,2,6,4,1,7,5] => [1,3,6,7,5,2,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,2,6,4,5,1,7] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,4,5,7,1] => [1,3,6,7,2,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,4,7,1,5] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,4,7,5,1] => [1,3,6,5,7,2,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,2,6,5,1,4,7] => [1,3,6,4,5,2,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,5,1,7,4] => [1,3,6,7,4,5,2] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,5,4,1,7] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,5,4,7,1] => [1,3,6,7,2,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,5,7,1,4] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,5,7,4,1] => [1,3,6,4,5,7,2] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,7,1,4,5] => [1,3,6,4,7,5,2] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,7,1,5,4] => [1,3,6,5,2,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,2,6,7,4,1,5] => [1,3,6,2,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,7,4,5,1] => [1,3,6,5,4,7,2] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,2,6,7,5,1,4] => [1,3,6,2,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,6,7,5,4,1] => [1,3,6,4,7,2,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,2,7,1,4,5,6] => [1,3,7,6,5,4,2] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,2,7,1,4,6,5] => [1,3,7,5,4,2,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,2,7,1,5,4,6] => [1,3,7,6,4,2,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,2,7,1,5,6,4] => [1,3,7,4,2,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,2,7,1,6,4,5] => [1,3,7,5,6,4,2] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,2,7,1,6,5,4] => [1,3,7,4,2,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,2,7,4,1,5,6] => [1,3,7,6,5,2,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,2,7,4,1,6,5] => [1,3,7,5,2,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,2,7,4,5,1,6] => [1,3,7,6,2,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,2,7,4,5,6,1] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,2,7,4,6,1,5] => [1,3,7,5,6,2,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,2,7,4,6,5,1] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,2,7,5,1,4,6] => [1,3,7,6,4,5,2] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,2,7,5,1,6,4] => [1,3,7,4,5,2,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,2,7,5,4,1,6] => [1,3,7,6,2,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,2,7,5,4,6,1] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,2,7,5,6,1,4] => [1,3,7,4,5,6,2] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,2,7,5,6,4,1] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,2,7,6,1,4,5] => [1,3,7,5,2,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,2,7,6,1,5,4] => [1,3,7,4,6,5,2] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,2,7,6,4,1,5] => [1,3,7,5,4,6,2] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,2,7,6,4,5,1] => [1,3,7,2,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,2,7,6,5,1,4] => [1,3,7,4,6,2,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,2,7,6,5,4,1] => [1,3,7,2,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,4,1,2,5,6,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,1,2,5,7,6] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,1,2,6,5,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,1,2,6,7,5] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,1,2,7,5,6] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,4,1,2,7,6,5] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,4,1,5,2,6,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,1,5,2,7,6] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,1,5,6,2,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,1,5,6,7,2] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,1,5,7,2,6] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,4,1,5,7,6,2] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,4,1,6,2,5,7] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,1,6,2,7,5] => [1,3,2,4,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,1,6,5,2,7] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,1,6,5,7,2] => [1,3,2,4,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,1,6,7,2,5] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,1,6,7,5,2] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,1,7,2,5,6] => [1,3,2,4,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,4,1,7,2,6,5] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,4,1,7,5,2,6] => [1,3,2,4,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,4,1,7,5,6,2] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,4,1,7,6,2,5] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,4,1,7,6,5,2] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,4,2,1,5,6,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,2,1,5,7,6] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,2,1,6,5,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,2,1,6,7,5] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,2,1,7,5,6] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,4,2,1,7,6,5] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,4,2,5,1,6,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,2,5,1,7,6] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,2,5,6,1,7] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,2,5,6,7,1] => [1,3,2,4,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,4,2,5,7,1,6] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,4,2,5,7,6,1] => [1,3,2,4,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,4,2,6,1,5,7] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,2,6,1,7,5] => [1,3,2,4,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,2,6,5,1,7] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,2,6,5,7,1] => [1,3,2,4,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,2,6,7,1,5] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,2,6,7,5,1] => [1,3,2,4,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,4,2,7,1,5,6] => [1,3,2,4,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,4,2,7,1,6,5] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,4,2,7,5,1,6] => [1,3,2,4,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,4,2,7,5,6,1] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,4,2,7,6,1,5] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,4,2,7,6,5,1] => [1,3,2,4,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,4,5,1,2,6,7] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,1,2,7,6] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,1,6,2,7] => [1,3,5,6,2,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,1,6,7,2] => [1,3,5,6,7,2,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,1,7,2,6] => [1,3,5,7,6,2,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,1,7,6,2] => [1,3,5,7,2,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,2,1,6,7] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,2,1,7,6] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,2,6,1,7] => [1,3,5,6,2,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,2,6,7,1] => [1,3,5,6,7,2,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,2,7,1,6] => [1,3,5,7,6,2,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,2,7,6,1] => [1,3,5,7,2,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,6,1,2,7] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,6,1,7,2] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,6,2,1,7] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,6,2,7,1] => [1,3,5,2,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,6,7,1,2] => [1,3,5,7,2,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,6,7,2,1] => [1,3,5,7,2,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,7,1,2,6] => [1,3,5,2,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,7,1,6,2] => [1,3,5,2,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,7,2,1,6] => [1,3,5,2,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,7,2,6,1] => [1,3,5,2,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,4,5,7,6,1,2] => [1,3,5,6,2,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,5,7,6,2,1] => [1,3,5,6,2,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,4,6,1,2,5,7] => [1,3,6,5,2,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,4,6,1,2,7,5] => [1,3,6,7,5,2,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,4,6,1,5,2,7] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,1,5,7,2] => [1,3,6,7,2,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,1,7,2,5] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,1,7,5,2] => [1,3,6,5,7,2,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,4,6,2,1,5,7] => [1,3,6,5,2,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,4,6,2,1,7,5] => [1,3,6,7,5,2,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,4,6,2,5,1,7] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,2,5,7,1] => [1,3,6,7,2,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,2,7,1,5] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,2,7,5,1] => [1,3,6,5,7,2,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,4,6,5,1,2,7] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,5,1,7,2] => [1,3,6,7,2,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,5,2,1,7] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,5,2,7,1] => [1,3,6,7,2,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,5,7,1,2] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,5,7,2,1] => [1,3,6,2,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,7,1,2,5] => [1,3,6,2,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,7,1,5,2] => [1,3,6,5,2,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,4,6,7,2,1,5] => [1,3,6,2,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,7,2,5,1] => [1,3,6,5,2,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,4,6,7,5,1,2] => [1,3,6,2,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,6,7,5,2,1] => [1,3,6,2,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,4,7,1,2,5,6] => [1,3,7,6,5,2,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,4,7,1,2,6,5] => [1,3,7,5,2,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,4,7,1,5,2,6] => [1,3,7,6,2,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,4,7,1,5,6,2] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,4,7,1,6,2,5] => [1,3,7,5,6,2,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,4,7,1,6,5,2] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,4,7,2,1,5,6] => [1,3,7,6,5,2,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,4,7,2,1,6,5] => [1,3,7,5,2,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,4,7,2,5,1,6] => [1,3,7,6,2,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,4,7,2,5,6,1] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,4,7,2,6,1,5] => [1,3,7,5,6,2,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,4,7,2,6,5,1] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,4,7,5,1,2,6] => [1,3,7,6,2,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,4,7,5,1,6,2] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,4,7,5,2,1,6] => [1,3,7,6,2,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,4,7,5,2,6,1] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,4,7,5,6,1,2] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,4,7,5,6,2,1] => [1,3,7,2,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,4,7,6,1,2,5] => [1,3,7,5,2,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,4,7,6,1,5,2] => [1,3,7,2,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,4,7,6,2,1,5] => [1,3,7,5,2,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,4,7,6,2,5,1] => [1,3,7,2,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,4,7,6,5,1,2] => [1,3,7,2,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,4,7,6,5,2,1] => [1,3,7,2,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,5,1,2,4,6,7] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,2,4,7,6] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,2,6,4,7] => [1,3,2,5,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,2,6,7,4] => [1,3,2,5,6,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,2,7,4,6] => [1,3,2,5,7,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,2,7,6,4] => [1,3,2,5,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,4,2,6,7] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,4,2,7,6] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,4,6,2,7] => [1,3,2,5,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,4,6,7,2] => [1,3,2,5,6,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,4,7,2,6] => [1,3,2,5,7,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,4,7,6,2] => [1,3,2,5,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,6,2,4,7] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,6,2,7,4] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,6,4,2,7] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,6,4,7,2] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,6,7,2,4] => [1,3,2,5,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,6,7,4,2] => [1,3,2,5,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,7,2,4,6] => [1,3,2,5,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,7,2,6,4] => [1,3,2,5,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,7,4,2,6] => [1,3,2,5,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,7,4,6,2] => [1,3,2,5,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,1,7,6,2,4] => [1,3,2,5,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,1,7,6,4,2] => [1,3,2,5,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,1,4,6,7] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,1,4,7,6] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,1,6,4,7] => [1,3,2,5,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,1,6,7,4] => [1,3,2,5,6,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,1,7,4,6] => [1,3,2,5,7,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,1,7,6,4] => [1,3,2,5,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,4,1,6,7] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,4,1,7,6] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,4,6,1,7] => [1,3,2,5,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,4,6,7,1] => [1,3,2,5,6,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,4,7,1,6] => [1,3,2,5,7,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,4,7,6,1] => [1,3,2,5,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,6,1,4,7] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,6,1,7,4] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,6,4,1,7] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,6,4,7,1] => [1,3,2,5,4,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,6,7,1,4] => [1,3,2,5,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,6,7,4,1] => [1,3,2,5,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,7,1,4,6] => [1,3,2,5,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,7,1,6,4] => [1,3,2,5,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,7,4,1,6] => [1,3,2,5,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,7,4,6,1] => [1,3,2,5,4,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,5,2,7,6,1,4] => [1,3,2,5,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,2,7,6,4,1] => [1,3,2,5,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,5,4,1,2,6,7] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,5,4,1,2,7,6] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,5,4,1,6,2,7] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,5,4,1,6,7,2] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,5,4,1,7,2,6] => [1,3,4,2,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,5,4,1,7,6,2] => [1,3,4,2,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,5,4,2,1,6,7] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,5,4,2,1,7,6] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,5,4,2,6,1,7] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,5,4,2,6,7,1] => [1,3,4,2,5,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,5,4,2,7,1,6] => [1,3,4,2,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,5,4,2,7,6,1] => [1,3,4,2,5,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,5,4,6,1,2,7] => [1,3,4,6,2,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,5,4,6,1,7,2] => [1,3,4,6,7,2,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,5,4,6,2,1,7] => [1,3,4,6,2,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,5,4,6,2,7,1] => [1,3,4,6,7,2,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,5,4,6,7,1,2] => [1,3,4,6,2,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,5,4,6,7,2,1] => [1,3,4,6,2,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,5,4,7,1,2,6] => [1,3,4,7,6,2,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,5,4,7,1,6,2] => [1,3,4,7,2,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,5,4,7,2,1,6] => [1,3,4,7,6,2,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,5,4,7,2,6,1] => [1,3,4,7,2,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,5,4,7,6,1,2] => [1,3,4,7,2,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,5,4,7,6,2,1] => [1,3,4,7,2,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,5,6,1,2,4,7] => [1,3,6,4,2,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,5,6,1,2,7,4] => [1,3,6,7,4,2,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,5,6,1,4,2,7] => [1,3,6,2,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,1,4,7,2] => [1,3,6,7,2,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,1,7,2,4] => [1,3,6,2,5,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,1,7,4,2] => [1,3,6,4,2,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,5,6,2,1,4,7] => [1,3,6,4,2,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,5,6,2,1,7,4] => [1,3,6,7,4,2,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,5,6,2,4,1,7] => [1,3,6,2,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,2,4,7,1] => [1,3,6,7,2,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,2,7,1,4] => [1,3,6,2,5,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,2,7,4,1] => [1,3,6,4,2,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,5,6,4,1,2,7] => [1,3,6,2,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,4,1,7,2] => [1,3,6,7,2,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,4,2,1,7] => [1,3,6,2,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,4,2,7,1] => [1,3,6,7,2,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,4,7,1,2] => [1,3,6,2,5,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,4,7,2,1] => [1,3,6,2,5,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,7,1,2,4] => [1,3,6,2,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,7,1,4,2] => [1,3,6,4,7,2,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,5,6,7,2,1,4] => [1,3,6,2,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,7,2,4,1] => [1,3,6,4,7,2,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,5,6,7,4,1,2] => [1,3,6,2,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,6,7,4,2,1] => [1,3,6,2,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,5,7,1,2,4,6] => [1,3,7,6,4,2,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,5,7,1,2,6,4] => [1,3,7,4,2,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,5,7,1,4,2,6] => [1,3,7,6,2,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,5,7,1,4,6,2] => [1,3,7,2,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,1,6,2,4] => [1,3,7,4,2,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,5,7,1,6,4,2] => [1,3,7,2,5,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,2,1,4,6] => [1,3,7,6,4,2,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,5,7,2,1,6,4] => [1,3,7,4,2,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,5,7,2,4,1,6] => [1,3,7,6,2,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,5,7,2,4,6,1] => [1,3,7,2,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,2,6,1,4] => [1,3,7,4,2,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,5,7,2,6,4,1] => [1,3,7,2,5,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,4,1,2,6] => [1,3,7,6,2,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,5,7,4,1,6,2] => [1,3,7,2,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,4,2,1,6] => [1,3,7,6,2,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,5,7,4,2,6,1] => [1,3,7,2,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,4,6,1,2] => [1,3,7,2,5,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,4,6,2,1] => [1,3,7,2,5,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,6,1,2,4] => [1,3,7,4,6,2,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,5,7,6,1,4,2] => [1,3,7,2,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,6,2,1,4] => [1,3,7,4,6,2,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,5,7,6,2,4,1] => [1,3,7,2,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,6,4,1,2] => [1,3,7,2,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,5,7,6,4,2,1] => [1,3,7,2,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,6,1,2,4,5,7] => [1,3,2,6,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,1,2,4,7,5] => [1,3,2,6,7,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,1,2,5,4,7] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,2,5,7,4] => [1,3,2,6,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,2,7,4,5] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,2,7,5,4] => [1,3,2,6,5,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,1,4,2,5,7] => [1,3,2,6,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,1,4,2,7,5] => [1,3,2,6,7,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,1,4,5,2,7] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,4,5,7,2] => [1,3,2,6,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,4,7,2,5] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,4,7,5,2] => [1,3,2,6,5,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,1,5,2,4,7] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,5,2,7,4] => [1,3,2,6,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,5,4,2,7] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,5,4,7,2] => [1,3,2,6,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,5,7,2,4] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,5,7,4,2] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,7,2,4,5] => [1,3,2,6,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,7,2,5,4] => [1,3,2,6,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,1,7,4,2,5] => [1,3,2,6,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,7,4,5,2] => [1,3,2,6,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,1,7,5,2,4] => [1,3,2,6,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,1,7,5,4,2] => [1,3,2,6,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,1,4,5,7] => [1,3,2,6,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,2,1,4,7,5] => [1,3,2,6,7,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,2,1,5,4,7] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,1,5,7,4] => [1,3,2,6,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,1,7,4,5] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,1,7,5,4] => [1,3,2,6,5,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,2,4,1,5,7] => [1,3,2,6,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,2,4,1,7,5] => [1,3,2,6,7,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,2,4,5,1,7] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,4,5,7,1] => [1,3,2,6,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,4,7,1,5] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,4,7,5,1] => [1,3,2,6,5,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,2,5,1,4,7] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,5,1,7,4] => [1,3,2,6,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,5,4,1,7] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,5,4,7,1] => [1,3,2,6,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,5,7,1,4] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,5,7,4,1] => [1,3,2,6,4,5,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,7,1,4,5] => [1,3,2,6,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,7,1,5,4] => [1,3,2,6,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,2,7,4,1,5] => [1,3,2,6,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,7,4,5,1] => [1,3,2,6,5,4,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,6,2,7,5,1,4] => [1,3,2,6,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,2,7,5,4,1] => [1,3,2,6,4,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,6,4,1,2,5,7] => [1,3,4,2,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,1,2,7,5] => [1,3,4,2,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,1,5,2,7] => [1,3,4,2,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,1,5,7,2] => [1,3,4,2,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,1,7,2,5] => [1,3,4,2,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,1,7,5,2] => [1,3,4,2,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,2,1,5,7] => [1,3,4,2,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,2,1,7,5] => [1,3,4,2,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,2,5,1,7] => [1,3,4,2,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,2,5,7,1] => [1,3,4,2,6,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,2,7,1,5] => [1,3,4,2,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,2,7,5,1] => [1,3,4,2,6,5,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,6,4,5,1,2,7] => [1,3,4,5,2,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,6,4,5,1,7,2] => [1,3,4,5,2,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,6,4,5,2,1,7] => [1,3,4,5,2,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,6,4,5,2,7,1] => [1,3,4,5,2,6,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,6,4,5,7,1,2] => [1,3,4,5,7,2,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,6,4,5,7,2,1] => [1,3,4,5,7,2,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,6,4,7,1,2,5] => [1,3,4,7,5,2,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,6,4,7,1,5,2] => [1,3,4,7,2,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,6,4,7,2,1,5] => [1,3,4,7,5,2,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,6,4,7,2,5,1] => [1,3,4,7,2,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,6,4,7,5,1,2] => [1,3,4,7,2,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,6,4,7,5,2,1] => [1,3,4,7,2,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,6,5,1,2,4,7] => [1,3,5,2,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,1,2,7,4] => [1,3,5,2,6,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,1,4,2,7] => [1,3,5,4,2,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,1,4,7,2] => [1,3,5,4,2,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,1,7,2,4] => [1,3,5,7,4,2,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,6,5,1,7,4,2] => [1,3,5,7,2,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,6,5,2,1,4,7] => [1,3,5,2,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,2,1,7,4] => [1,3,5,2,6,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,2,4,1,7] => [1,3,5,4,2,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,2,4,7,1] => [1,3,5,4,2,6,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,2,7,1,4] => [1,3,5,7,4,2,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,6,5,2,7,4,1] => [1,3,5,7,2,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,6,5,4,1,2,7] => [1,3,5,2,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,4,1,7,2] => [1,3,5,2,6,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,4,2,1,7] => [1,3,5,2,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,4,2,7,1] => [1,3,5,2,6,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,4,7,1,2] => [1,3,5,7,2,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,6,5,4,7,2,1] => [1,3,5,7,2,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,6,5,7,1,2,4] => [1,3,5,2,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,7,1,4,2] => [1,3,5,2,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,7,2,1,4] => [1,3,5,2,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,7,2,4,1] => [1,3,5,2,6,4,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,6,5,7,4,1,2] => [1,3,5,4,7,2,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,6,5,7,4,2,1] => [1,3,5,4,7,2,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,6,7,1,2,4,5] => [1,3,7,5,2,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,6,7,1,2,5,4] => [1,3,7,4,2,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,6,7,1,4,2,5] => [1,3,7,5,4,2,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,6,7,1,4,5,2] => [1,3,7,2,6,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,6,7,1,5,2,4] => [1,3,7,4,2,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,6,7,1,5,4,2] => [1,3,7,2,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,6,7,2,1,4,5] => [1,3,7,5,2,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,6,7,2,1,5,4] => [1,3,7,4,2,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,6,7,2,4,1,5] => [1,3,7,5,4,2,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,6,7,2,4,5,1] => [1,3,7,2,6,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,6,7,2,5,1,4] => [1,3,7,4,2,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,6,7,2,5,4,1] => [1,3,7,2,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,6,7,4,1,2,5] => [1,3,7,5,2,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,6,7,4,1,5,2] => [1,3,7,2,6,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,6,7,4,2,1,5] => [1,3,7,5,2,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,6,7,4,2,5,1] => [1,3,7,2,6,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,6,7,4,5,1,2] => [1,3,7,2,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,6,7,4,5,2,1] => [1,3,7,2,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,6,7,5,1,2,4] => [1,3,7,4,5,2,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,6,7,5,1,4,2] => [1,3,7,2,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,6,7,5,2,1,4] => [1,3,7,4,5,2,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,6,7,5,2,4,1] => [1,3,7,2,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,6,7,5,4,1,2] => [1,3,7,2,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,6,7,5,4,2,1] => [1,3,7,2,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,1,2,4,5,6] => [1,3,2,7,6,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,7,1,2,4,6,5] => [1,3,2,7,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,1,2,5,4,6] => [1,3,2,7,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,1,2,5,6,4] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,1,2,6,4,5] => [1,3,2,7,5,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,1,2,6,5,4] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,1,4,2,5,6] => [1,3,2,7,6,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,7,1,4,2,6,5] => [1,3,2,7,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,1,4,5,2,6] => [1,3,2,7,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,1,4,5,6,2] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,1,4,6,2,5] => [1,3,2,7,5,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,1,4,6,5,2] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,1,5,2,4,6] => [1,3,2,7,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,1,5,2,6,4] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,1,5,4,2,6] => [1,3,2,7,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,1,5,4,6,2] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,1,5,6,2,4] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,1,5,6,4,2] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,1,6,2,4,5] => [1,3,2,7,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,1,6,2,5,4] => [1,3,2,7,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,7,1,6,4,2,5] => [1,3,2,7,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,1,6,4,5,2] => [1,3,2,7,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,7,1,6,5,2,4] => [1,3,2,7,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,7,1,6,5,4,2] => [1,3,2,7,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,7,2,1,4,5,6] => [1,3,2,7,6,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,7,2,1,4,6,5] => [1,3,2,7,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,2,1,5,4,6] => [1,3,2,7,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,2,1,5,6,4] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,2,1,6,4,5] => [1,3,2,7,5,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,2,1,6,5,4] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,2,4,1,5,6] => [1,3,2,7,6,5,4] => [.,[[.,.],[[[[.,.],.],.],.]]] => [[[],[[],[],[],[]]]] => 5
[3,7,2,4,1,6,5] => [1,3,2,7,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,2,4,5,1,6] => [1,3,2,7,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,2,4,5,6,1] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,2,4,6,1,5] => [1,3,2,7,5,6,4] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,2,4,6,5,1] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,2,5,1,4,6] => [1,3,2,7,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,2,5,1,6,4] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,2,5,4,1,6] => [1,3,2,7,6,4,5] => [.,[[.,.],[[[.,[.,.]],.],.]]] => [[[],[[[]],[],[]]]] => 4
[3,7,2,5,4,6,1] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,2,5,6,1,4] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,2,5,6,4,1] => [1,3,2,7,4,5,6] => [.,[[.,.],[[.,[.,[.,.]]],.]]] => [[[],[[[[]]],[]]]] => 3
[3,7,2,6,1,4,5] => [1,3,2,7,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,2,6,1,5,4] => [1,3,2,7,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,7,2,6,4,1,5] => [1,3,2,7,5,4,6] => [.,[[.,.],[[[.,.],[.,.]],.]]] => [[[],[[],[[]],[]]]] => 4
[3,7,2,6,4,5,1] => [1,3,2,7,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,7,2,6,5,1,4] => [1,3,2,7,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,7,2,6,5,4,1] => [1,3,2,7,4,6,5] => [.,[[.,.],[[.,[[.,.],.]],.]]] => [[[],[[[],[]],[]]]] => 4
[3,7,4,1,2,5,6] => [1,3,4,2,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,7,4,1,2,6,5] => [1,3,4,2,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,7,4,1,5,2,6] => [1,3,4,2,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,7,4,1,5,6,2] => [1,3,4,2,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,7,4,1,6,2,5] => [1,3,4,2,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,7,4,1,6,5,2] => [1,3,4,2,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,7,4,2,1,5,6] => [1,3,4,2,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,7,4,2,1,6,5] => [1,3,4,2,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,7,4,2,5,1,6] => [1,3,4,2,7,6,5] => [.,[[.,.],[.,[[[.,.],.],.]]]] => [[[],[[[],[],[]]]]] => 4
[3,7,4,2,5,6,1] => [1,3,4,2,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,7,4,2,6,1,5] => [1,3,4,2,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,7,4,2,6,5,1] => [1,3,4,2,7,5,6] => [.,[[.,.],[.,[[.,[.,.]],.]]]] => [[[],[[[[]],[]]]]] => 3
[3,7,4,5,1,2,6] => [1,3,4,5,2,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,7,4,5,1,6,2] => [1,3,4,5,2,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,7,4,5,2,1,6] => [1,3,4,5,2,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,7,4,5,2,6,1] => [1,3,4,5,2,7,6] => [.,[[.,.],[.,[.,[[.,.],.]]]]] => [[[],[[[[],[]]]]]] => 3
[3,7,4,5,6,1,2] => [1,3,4,5,6,2,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,7,4,5,6,2,1] => [1,3,4,5,6,2,7] => [.,[[.,.],[.,[.,[.,[.,.]]]]]] => [[[],[[[[[]]]]]]] => 2
[3,7,4,6,1,2,5] => [1,3,4,6,2,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,7,4,6,1,5,2] => [1,3,4,6,5,2,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,7,4,6,2,1,5] => [1,3,4,6,2,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,7,4,6,2,5,1] => [1,3,4,6,5,2,7] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,7,4,6,5,1,2] => [1,3,4,6,2,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,7,4,6,5,2,1] => [1,3,4,6,2,7,5] => [.,[[.,.],[.,[[.,.],[.,.]]]]] => [[[],[[[],[[]]]]]] => 3
[3,7,5,1,2,4,6] => [1,3,5,2,7,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,1,2,6,4] => [1,3,5,2,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,1,4,2,6] => [1,3,5,4,2,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,1,4,6,2] => [1,3,5,4,2,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,1,6,2,4] => [1,3,5,6,2,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,7,5,1,6,4,2] => [1,3,5,6,4,2,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,7,5,2,1,4,6] => [1,3,5,2,7,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,2,1,6,4] => [1,3,5,2,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,2,4,1,6] => [1,3,5,4,2,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,2,4,6,1] => [1,3,5,4,2,7,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,2,6,1,4] => [1,3,5,6,2,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,7,5,2,6,4,1] => [1,3,5,6,4,2,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,7,5,4,1,2,6] => [1,3,5,2,7,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,4,1,6,2] => [1,3,5,2,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,4,2,1,6] => [1,3,5,2,7,6,4] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,4,2,6,1] => [1,3,5,2,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,4,6,1,2] => [1,3,5,6,2,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,7,5,4,6,2,1] => [1,3,5,6,2,7,4] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,7,5,6,1,2,4] => [1,3,5,2,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,6,1,4,2] => [1,3,5,2,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,6,2,1,4] => [1,3,5,2,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,6,2,4,1] => [1,3,5,2,7,4,6] => [.,[[.,.],[[.,.],[[.,.],.]]]] => [[[],[[],[[],[]]]]] => 4
[3,7,5,6,4,1,2] => [1,3,5,4,6,2,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,7,5,6,4,2,1] => [1,3,5,4,6,2,7] => [.,[[.,.],[[.,.],[.,[.,.]]]]] => [[[],[[],[[[]]]]]] => 3
[3,7,6,1,2,4,5] => [1,3,6,4,2,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,1,2,5,4] => [1,3,6,5,2,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,1,4,2,5] => [1,3,6,2,7,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,1,4,5,2] => [1,3,6,5,4,2,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,1,5,2,4] => [1,3,6,2,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,1,5,4,2] => [1,3,6,4,2,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,2,1,4,5] => [1,3,6,4,2,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,2,1,5,4] => [1,3,6,5,2,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,2,4,1,5] => [1,3,6,2,7,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,2,4,5,1] => [1,3,6,5,4,2,7] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,2,5,1,4] => [1,3,6,2,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,2,5,4,1] => [1,3,6,4,2,7,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,4,1,2,5] => [1,3,6,2,7,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,4,1,5,2] => [1,3,6,5,2,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,4,2,1,5] => [1,3,6,2,7,5,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,4,2,5,1] => [1,3,6,5,2,7,4] => [.,[[.,.],[[[.,.],.],[.,.]]]] => [[[],[[],[],[[]]]]] => 4
[3,7,6,4,5,1,2] => [1,3,6,2,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,4,5,2,1] => [1,3,6,2,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,5,1,2,4] => [1,3,6,2,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,5,1,4,2] => [1,3,6,4,5,2,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,5,2,1,4] => [1,3,6,2,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,5,2,4,1] => [1,3,6,4,5,2,7] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,5,4,1,2] => [1,3,6,2,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[3,7,6,5,4,2,1] => [1,3,6,2,7,4,5] => [.,[[.,.],[[.,[.,.]],[.,.]]]] => [[[],[[[]],[[]]]]] => 3
[4,1,2,3,5,6,7] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,2,3,5,7,6] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,2,3,6,5,7] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,2,3,6,7,5] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,2,3,7,5,6] => [1,4,3,2,5,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,2,3,7,6,5] => [1,4,3,2,5,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,2,5,3,6,7] => [1,4,5,3,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,2,5,3,7,6] => [1,4,5,3,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,2,5,6,3,7] => [1,4,5,6,3,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,2,5,6,7,3] => [1,4,5,6,7,3,2] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,2,5,7,3,6] => [1,4,5,7,6,3,2] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,2,5,7,6,3] => [1,4,5,7,3,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,2,6,3,5,7] => [1,4,6,5,3,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,2,6,3,7,5] => [1,4,6,7,5,3,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,2,6,5,3,7] => [1,4,6,3,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,2,6,5,7,3] => [1,4,6,7,3,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,2,6,7,3,5] => [1,4,6,3,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,2,6,7,5,3] => [1,4,6,5,7,3,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,2,7,3,5,6] => [1,4,7,6,5,3,2] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,1,2,7,3,6,5] => [1,4,7,5,3,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,2,7,5,3,6] => [1,4,7,6,3,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,1,2,7,5,6,3] => [1,4,7,3,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,2,7,6,3,5] => [1,4,7,5,6,3,2] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,2,7,6,5,3] => [1,4,7,3,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,3,2,5,6,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,3,2,5,7,6] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,3,2,6,5,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,3,2,6,7,5] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,3,2,7,5,6] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,3,2,7,6,5] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,3,5,2,6,7] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,3,5,2,7,6] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,3,5,6,2,7] => [1,4,5,6,2,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,3,5,6,7,2] => [1,4,5,6,7,2,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,3,5,7,2,6] => [1,4,5,7,6,2,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,3,5,7,6,2] => [1,4,5,7,2,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,3,6,2,5,7] => [1,4,6,5,2,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,3,6,2,7,5] => [1,4,6,7,5,2,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,3,6,5,2,7] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,3,6,5,7,2] => [1,4,6,7,2,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,3,6,7,2,5] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,3,6,7,5,2] => [1,4,6,5,7,2,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,3,7,2,5,6] => [1,4,7,6,5,2,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,1,3,7,2,6,5] => [1,4,7,5,2,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,3,7,5,2,6] => [1,4,7,6,2,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,1,3,7,5,6,2] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,3,7,6,2,5] => [1,4,7,5,6,2,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,3,7,6,5,2] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,5,2,3,6,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,5,2,3,7,6] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,5,2,6,3,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,5,2,6,7,3] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,5,2,7,3,6] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,5,2,7,6,3] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,5,3,2,6,7] => [1,4,3,5,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,5,3,2,7,6] => [1,4,3,5,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,5,3,6,2,7] => [1,4,3,5,6,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,5,3,6,7,2] => [1,4,3,5,6,7,2] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,5,3,7,2,6] => [1,4,3,5,7,6,2] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,5,3,7,6,2] => [1,4,3,5,7,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,5,6,2,3,7] => [1,4,6,3,5,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,5,6,2,7,3] => [1,4,6,7,3,5,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,5,6,3,2,7] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,5,6,3,7,2] => [1,4,6,7,2,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,5,6,7,2,3] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,5,6,7,3,2] => [1,4,6,3,5,7,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,5,7,2,3,6] => [1,4,7,6,3,5,2] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,1,5,7,2,6,3] => [1,4,7,3,5,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,5,7,3,2,6] => [1,4,7,6,2,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,1,5,7,3,6,2] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,5,7,6,2,3] => [1,4,7,3,5,6,2] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,5,7,6,3,2] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,6,2,3,5,7] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,6,2,3,7,5] => [1,4,2,3,6,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,6,2,5,3,7] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,6,2,5,7,3] => [1,4,2,3,6,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,6,2,7,3,5] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,6,2,7,5,3] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,6,3,2,5,7] => [1,4,3,6,5,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,6,3,2,7,5] => [1,4,3,6,7,5,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,6,3,5,2,7] => [1,4,3,6,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,6,3,5,7,2] => [1,4,3,6,7,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,6,3,7,2,5] => [1,4,3,6,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,6,3,7,5,2] => [1,4,3,6,5,7,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,6,5,2,3,7] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,6,5,2,7,3] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,6,5,3,2,7] => [1,4,5,3,6,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,6,5,3,7,2] => [1,4,5,3,6,7,2] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,6,5,7,2,3] => [1,4,5,7,3,6,2] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,6,5,7,3,2] => [1,4,5,7,2,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,6,7,2,3,5] => [1,4,7,5,2,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,6,7,2,5,3] => [1,4,7,3,6,5,2] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,1,6,7,3,2,5] => [1,4,7,5,3,6,2] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,6,7,3,5,2] => [1,4,7,2,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,1,6,7,5,2,3] => [1,4,7,3,6,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,1,6,7,5,3,2] => [1,4,7,2,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,1,7,2,3,5,6] => [1,4,2,3,7,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,1,7,2,3,6,5] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,7,2,5,3,6] => [1,4,2,3,7,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,1,7,2,5,6,3] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,7,2,6,3,5] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,7,2,6,5,3] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,1,7,3,2,5,6] => [1,4,3,7,6,5,2] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,1,7,3,2,6,5] => [1,4,3,7,5,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,7,3,5,2,6] => [1,4,3,7,6,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,1,7,3,5,6,2] => [1,4,3,7,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,7,3,6,2,5] => [1,4,3,7,5,6,2] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,7,3,6,5,2] => [1,4,3,7,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,1,7,5,2,3,6] => [1,4,5,2,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,7,5,2,6,3] => [1,4,5,2,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,1,7,5,3,2,6] => [1,4,5,3,7,6,2] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,7,5,3,6,2] => [1,4,5,3,7,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,1,7,5,6,2,3] => [1,4,5,6,2,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,1,7,5,6,3,2] => [1,4,5,6,3,7,2] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,1,7,6,2,3,5] => [1,4,6,3,7,5,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,7,6,2,5,3] => [1,4,6,5,2,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,7,6,3,2,5] => [1,4,6,2,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,7,6,3,5,2] => [1,4,6,5,3,7,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,1,7,6,5,2,3] => [1,4,6,2,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,1,7,6,5,3,2] => [1,4,6,3,7,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,1,3,5,6,7] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,1,3,5,7,6] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,1,3,6,5,7] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,1,3,6,7,5] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,1,3,7,5,6] => [1,4,3,2,5,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,1,3,7,6,5] => [1,4,3,2,5,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,1,5,3,6,7] => [1,4,5,3,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,1,5,3,7,6] => [1,4,5,3,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,1,5,6,3,7] => [1,4,5,6,3,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,1,5,6,7,3] => [1,4,5,6,7,3,2] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,1,5,7,3,6] => [1,4,5,7,6,3,2] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,1,5,7,6,3] => [1,4,5,7,3,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,1,6,3,5,7] => [1,4,6,5,3,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,1,6,3,7,5] => [1,4,6,7,5,3,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,1,6,5,3,7] => [1,4,6,3,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,1,6,5,7,3] => [1,4,6,7,3,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,1,6,7,3,5] => [1,4,6,3,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,1,6,7,5,3] => [1,4,6,5,7,3,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,1,7,3,5,6] => [1,4,7,6,5,3,2] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,2,1,7,3,6,5] => [1,4,7,5,3,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,1,7,5,3,6] => [1,4,7,6,3,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,2,1,7,5,6,3] => [1,4,7,3,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,1,7,6,3,5] => [1,4,7,5,6,3,2] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,1,7,6,5,3] => [1,4,7,3,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,3,1,5,6,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,3,1,5,7,6] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,3,1,6,5,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,3,1,6,7,5] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,3,1,7,5,6] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,3,1,7,6,5] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,3,5,1,6,7] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,3,5,1,7,6] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,3,5,6,1,7] => [1,4,5,6,2,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,3,5,6,7,1] => [1,4,5,6,7,2,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,3,5,7,1,6] => [1,4,5,7,6,2,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,3,5,7,6,1] => [1,4,5,7,2,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,3,6,1,5,7] => [1,4,6,5,2,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,3,6,1,7,5] => [1,4,6,7,5,2,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,3,6,5,1,7] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,3,6,5,7,1] => [1,4,6,7,2,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,3,6,7,1,5] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,3,6,7,5,1] => [1,4,6,5,7,2,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,3,7,1,5,6] => [1,4,7,6,5,2,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,2,3,7,1,6,5] => [1,4,7,5,2,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,3,7,5,1,6] => [1,4,7,6,2,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,2,3,7,5,6,1] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,3,7,6,1,5] => [1,4,7,5,6,2,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,3,7,6,5,1] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,5,1,3,6,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,5,1,3,7,6] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,5,1,6,3,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,5,1,6,7,3] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,5,1,7,3,6] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,5,1,7,6,3] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,5,3,1,6,7] => [1,4,3,5,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,5,3,1,7,6] => [1,4,3,5,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,5,3,6,1,7] => [1,4,3,5,6,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,5,3,6,7,1] => [1,4,3,5,6,7,2] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,5,3,7,1,6] => [1,4,3,5,7,6,2] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,5,3,7,6,1] => [1,4,3,5,7,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,5,6,1,3,7] => [1,4,6,3,5,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,5,6,1,7,3] => [1,4,6,7,3,5,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,5,6,3,1,7] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,5,6,3,7,1] => [1,4,6,7,2,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,5,6,7,1,3] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,5,6,7,3,1] => [1,4,6,3,5,7,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,5,7,1,3,6] => [1,4,7,6,3,5,2] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,2,5,7,1,6,3] => [1,4,7,3,5,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,5,7,3,1,6] => [1,4,7,6,2,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,2,5,7,3,6,1] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,5,7,6,1,3] => [1,4,7,3,5,6,2] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,5,7,6,3,1] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,6,1,3,5,7] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,6,1,3,7,5] => [1,4,2,3,6,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,6,1,5,3,7] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,6,1,5,7,3] => [1,4,2,3,6,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,6,1,7,3,5] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,6,1,7,5,3] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,6,3,1,5,7] => [1,4,3,6,5,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,6,3,1,7,5] => [1,4,3,6,7,5,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,6,3,5,1,7] => [1,4,3,6,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,6,3,5,7,1] => [1,4,3,6,7,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,6,3,7,1,5] => [1,4,3,6,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,6,3,7,5,1] => [1,4,3,6,5,7,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,6,5,1,3,7] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,6,5,1,7,3] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,6,5,3,1,7] => [1,4,5,3,6,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,6,5,3,7,1] => [1,4,5,3,6,7,2] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,6,5,7,1,3] => [1,4,5,7,3,6,2] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,6,5,7,3,1] => [1,4,5,7,2,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,6,7,1,3,5] => [1,4,7,5,2,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,6,7,1,5,3] => [1,4,7,3,6,5,2] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,2,6,7,3,1,5] => [1,4,7,5,3,6,2] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,6,7,3,5,1] => [1,4,7,2,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,2,6,7,5,1,3] => [1,4,7,3,6,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,2,6,7,5,3,1] => [1,4,7,2,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,2,7,1,3,5,6] => [1,4,2,3,7,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,2,7,1,3,6,5] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,7,1,5,3,6] => [1,4,2,3,7,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,2,7,1,5,6,3] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,7,1,6,3,5] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,7,1,6,5,3] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,2,7,3,1,5,6] => [1,4,3,7,6,5,2] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,2,7,3,1,6,5] => [1,4,3,7,5,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,7,3,5,1,6] => [1,4,3,7,6,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,2,7,3,5,6,1] => [1,4,3,7,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,7,3,6,1,5] => [1,4,3,7,5,6,2] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,7,3,6,5,1] => [1,4,3,7,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,2,7,5,1,3,6] => [1,4,5,2,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,7,5,1,6,3] => [1,4,5,2,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,2,7,5,3,1,6] => [1,4,5,3,7,6,2] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,7,5,3,6,1] => [1,4,5,3,7,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,2,7,5,6,1,3] => [1,4,5,6,2,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,2,7,5,6,3,1] => [1,4,5,6,3,7,2] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,2,7,6,1,3,5] => [1,4,6,3,7,5,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,7,6,1,5,3] => [1,4,6,5,2,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,7,6,3,1,5] => [1,4,6,2,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,7,6,3,5,1] => [1,4,6,5,3,7,2] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,2,7,6,5,1,3] => [1,4,6,2,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,2,7,6,5,3,1] => [1,4,6,3,7,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,3,1,2,5,6,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,1,2,5,7,6] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,1,2,6,5,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,1,2,6,7,5] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,1,2,7,5,6] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,1,2,7,6,5] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,1,5,2,6,7] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,1,5,2,7,6] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,1,5,6,2,7] => [1,4,5,6,2,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,1,5,6,7,2] => [1,4,5,6,7,2,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,1,5,7,2,6] => [1,4,5,7,6,2,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,1,5,7,6,2] => [1,4,5,7,2,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,1,6,2,5,7] => [1,4,6,5,2,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,1,6,2,7,5] => [1,4,6,7,5,2,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,1,6,5,2,7] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,1,6,5,7,2] => [1,4,6,7,2,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,1,6,7,2,5] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,1,6,7,5,2] => [1,4,6,5,7,2,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,1,7,2,5,6] => [1,4,7,6,5,2,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,1,7,2,6,5] => [1,4,7,5,2,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,1,7,5,2,6] => [1,4,7,6,2,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,1,7,5,6,2] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,1,7,6,2,5] => [1,4,7,5,6,2,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,1,7,6,5,2] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,2,1,5,6,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,2,1,5,7,6] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,2,1,6,5,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,2,1,6,7,5] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,2,1,7,5,6] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,2,1,7,6,5] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,2,5,1,6,7] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,2,5,1,7,6] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,2,5,6,1,7] => [1,4,5,6,2,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,2,5,6,7,1] => [1,4,5,6,7,2,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,2,5,7,1,6] => [1,4,5,7,6,2,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,2,5,7,6,1] => [1,4,5,7,2,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,2,6,1,5,7] => [1,4,6,5,2,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,2,6,1,7,5] => [1,4,6,7,5,2,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,2,6,5,1,7] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,2,6,5,7,1] => [1,4,6,7,2,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,2,6,7,1,5] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,2,6,7,5,1] => [1,4,6,5,7,2,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,2,7,1,5,6] => [1,4,7,6,5,2,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,2,7,1,6,5] => [1,4,7,5,2,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,2,7,5,1,6] => [1,4,7,6,2,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,2,7,5,6,1] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,2,7,6,1,5] => [1,4,7,5,6,2,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,2,7,6,5,1] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,5,1,2,6,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,5,1,2,7,6] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,5,1,6,2,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,5,1,6,7,2] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,5,1,7,2,6] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,5,1,7,6,2] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,5,2,1,6,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,5,2,1,7,6] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,5,2,6,1,7] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,5,2,6,7,1] => [1,4,2,3,5,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,5,2,7,1,6] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,5,2,7,6,1] => [1,4,2,3,5,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,5,6,1,2,7] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,5,6,1,7,2] => [1,4,6,7,2,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,5,6,2,1,7] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,5,6,2,7,1] => [1,4,6,7,2,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,5,6,7,1,2] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,5,6,7,2,1] => [1,4,6,2,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,5,7,1,2,6] => [1,4,7,6,2,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,5,7,1,6,2] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,5,7,2,1,6] => [1,4,7,6,2,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,5,7,2,6,1] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,5,7,6,1,2] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,5,7,6,2,1] => [1,4,7,2,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,6,1,2,5,7] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,1,2,7,5] => [1,4,2,3,6,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,1,5,2,7] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,1,5,7,2] => [1,4,2,3,6,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,1,7,2,5] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,1,7,5,2] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,2,1,5,7] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,2,1,7,5] => [1,4,2,3,6,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,2,5,1,7] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,2,5,7,1] => [1,4,2,3,6,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,2,7,1,5] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,2,7,5,1] => [1,4,2,3,6,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,6,5,1,2,7] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,6,5,1,7,2] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,6,5,2,1,7] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,6,5,2,7,1] => [1,4,5,2,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,6,5,7,1,2] => [1,4,5,7,2,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,6,5,7,2,1] => [1,4,5,7,2,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,6,7,1,2,5] => [1,4,7,5,2,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,6,7,1,5,2] => [1,4,7,2,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,6,7,2,1,5] => [1,4,7,5,2,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,6,7,2,5,1] => [1,4,7,2,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,6,7,5,1,2] => [1,4,7,2,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,6,7,5,2,1] => [1,4,7,2,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,7,1,2,5,6] => [1,4,2,3,7,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,7,1,2,6,5] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,7,1,5,2,6] => [1,4,2,3,7,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,7,1,5,6,2] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,7,1,6,2,5] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,7,1,6,5,2] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,7,2,1,5,6] => [1,4,2,3,7,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,7,2,1,6,5] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,7,2,5,1,6] => [1,4,2,3,7,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,3,7,2,5,6,1] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,7,2,6,1,5] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,7,2,6,5,1] => [1,4,2,3,7,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,3,7,5,1,2,6] => [1,4,5,2,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,7,5,1,6,2] => [1,4,5,2,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,7,5,2,1,6] => [1,4,5,2,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,7,5,2,6,1] => [1,4,5,2,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,3,7,5,6,1,2] => [1,4,5,6,2,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,7,5,6,2,1] => [1,4,5,6,2,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,3,7,6,1,2,5] => [1,4,6,2,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,7,6,1,5,2] => [1,4,6,5,2,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,7,6,2,1,5] => [1,4,6,2,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,7,6,2,5,1] => [1,4,6,5,2,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,7,6,5,1,2] => [1,4,6,2,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,3,7,6,5,2,1] => [1,4,6,2,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,1,2,3,6,7] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,1,2,3,7,6] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,1,2,6,3,7] => [1,4,2,5,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,1,2,6,7,3] => [1,4,2,5,6,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,1,2,7,3,6] => [1,4,2,5,7,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,1,2,7,6,3] => [1,4,2,5,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,1,3,2,6,7] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,5,1,3,2,7,6] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,5,1,3,6,2,7] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,5,1,3,6,7,2] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,5,1,3,7,2,6] => [1,4,3,2,5,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,5,1,3,7,6,2] => [1,4,3,2,5,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,5,1,6,2,3,7] => [1,4,6,3,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,1,6,2,7,3] => [1,4,6,7,3,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,1,6,3,2,7] => [1,4,6,2,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,1,6,3,7,2] => [1,4,6,7,2,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,1,6,7,2,3] => [1,4,6,2,5,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,1,6,7,3,2] => [1,4,6,3,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,1,7,2,3,6] => [1,4,7,6,3,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,5,1,7,2,6,3] => [1,4,7,3,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,5,1,7,3,2,6] => [1,4,7,6,2,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,5,1,7,3,6,2] => [1,4,7,2,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,1,7,6,2,3] => [1,4,7,3,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,5,1,7,6,3,2] => [1,4,7,2,5,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,2,1,3,6,7] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,2,1,3,7,6] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,2,1,6,3,7] => [1,4,2,5,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,2,1,6,7,3] => [1,4,2,5,6,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,2,1,7,3,6] => [1,4,2,5,7,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,2,1,7,6,3] => [1,4,2,5,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,2,3,1,6,7] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,5,2,3,1,7,6] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,5,2,3,6,1,7] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,5,2,3,6,7,1] => [1,4,3,2,5,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,5,2,3,7,1,6] => [1,4,3,2,5,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,5,2,3,7,6,1] => [1,4,3,2,5,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,5,2,6,1,3,7] => [1,4,6,3,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,2,6,1,7,3] => [1,4,6,7,3,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,2,6,3,1,7] => [1,4,6,2,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,2,6,3,7,1] => [1,4,6,7,2,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,2,6,7,1,3] => [1,4,6,2,5,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,2,6,7,3,1] => [1,4,6,3,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,2,7,1,3,6] => [1,4,7,6,3,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,5,2,7,1,6,3] => [1,4,7,3,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,5,2,7,3,1,6] => [1,4,7,6,2,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,5,2,7,3,6,1] => [1,4,7,2,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,2,7,6,1,3] => [1,4,7,3,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,5,2,7,6,3,1] => [1,4,7,2,5,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,3,1,2,6,7] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,3,1,2,7,6] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,3,1,6,2,7] => [1,4,2,5,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,3,1,6,7,2] => [1,4,2,5,6,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,3,1,7,2,6] => [1,4,2,5,7,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,3,1,7,6,2] => [1,4,2,5,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,3,2,1,6,7] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,3,2,1,7,6] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,3,2,6,1,7] => [1,4,2,5,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,3,2,6,7,1] => [1,4,2,5,6,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,3,2,7,1,6] => [1,4,2,5,7,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,3,2,7,6,1] => [1,4,2,5,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,3,6,1,2,7] => [1,4,6,2,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,3,6,1,7,2] => [1,4,6,7,2,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,3,6,2,1,7] => [1,4,6,2,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,3,6,2,7,1] => [1,4,6,7,2,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,3,6,7,1,2] => [1,4,6,2,5,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,3,6,7,2,1] => [1,4,6,2,5,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,3,7,1,2,6] => [1,4,7,6,2,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,5,3,7,1,6,2] => [1,4,7,2,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,3,7,2,1,6] => [1,4,7,6,2,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,5,3,7,2,6,1] => [1,4,7,2,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,3,7,6,1,2] => [1,4,7,2,5,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,3,7,6,2,1] => [1,4,7,2,5,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,6,1,2,3,7] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,6,1,2,7,3] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,6,1,3,2,7] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,6,1,3,7,2] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,6,1,7,2,3] => [1,4,2,5,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,6,1,7,3,2] => [1,4,2,5,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,6,2,1,3,7] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,6,2,1,7,3] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,6,2,3,1,7] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,6,2,3,7,1] => [1,4,2,5,3,6,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,6,2,7,1,3] => [1,4,2,5,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,6,2,7,3,1] => [1,4,2,5,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,6,3,1,2,7] => [1,4,3,6,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,6,3,1,7,2] => [1,4,3,6,7,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,6,3,2,1,7] => [1,4,3,6,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,6,3,2,7,1] => [1,4,3,6,7,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,6,3,7,1,2] => [1,4,3,6,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,6,3,7,2,1] => [1,4,3,6,2,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,6,7,1,2,3] => [1,4,7,3,6,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,5,6,7,1,3,2] => [1,4,7,2,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,6,7,2,1,3] => [1,4,7,3,6,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,5,6,7,2,3,1] => [1,4,7,2,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,6,7,3,1,2] => [1,4,7,2,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,6,7,3,2,1] => [1,4,7,2,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,5,7,1,2,3,6] => [1,4,2,5,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,7,1,2,6,3] => [1,4,2,5,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,7,1,3,2,6] => [1,4,2,5,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,7,1,3,6,2] => [1,4,2,5,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,7,1,6,2,3] => [1,4,2,5,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,7,1,6,3,2] => [1,4,2,5,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,7,2,1,3,6] => [1,4,2,5,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,7,2,1,6,3] => [1,4,2,5,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,7,2,3,1,6] => [1,4,2,5,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,7,2,3,6,1] => [1,4,2,5,3,7,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,5,7,2,6,1,3] => [1,4,2,5,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,7,2,6,3,1] => [1,4,2,5,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,5,7,3,1,2,6] => [1,4,3,7,6,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,5,7,3,1,6,2] => [1,4,3,7,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,5,7,3,2,1,6] => [1,4,3,7,6,2,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,5,7,3,2,6,1] => [1,4,3,7,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,5,7,3,6,1,2] => [1,4,3,7,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,5,7,3,6,2,1] => [1,4,3,7,2,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,5,7,6,1,2,3] => [1,4,6,2,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,7,6,1,3,2] => [1,4,6,3,7,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,7,6,2,1,3] => [1,4,6,2,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,7,6,2,3,1] => [1,4,6,3,7,2,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,5,7,6,3,1,2] => [1,4,6,2,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,5,7,6,3,2,1] => [1,4,6,2,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,1,2,3,5,7] => [1,4,2,6,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,1,2,3,7,5] => [1,4,2,6,7,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,1,2,5,3,7] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,1,2,5,7,3] => [1,4,2,6,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,1,2,7,3,5] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,1,2,7,5,3] => [1,4,2,6,5,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,1,3,2,5,7] => [1,4,3,2,6,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,1,3,2,7,5] => [1,4,3,2,6,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,1,3,5,2,7] => [1,4,3,2,6,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,1,3,5,7,2] => [1,4,3,2,6,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,1,3,7,2,5] => [1,4,3,2,6,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,1,3,7,5,2] => [1,4,3,2,6,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,1,5,2,3,7] => [1,4,5,2,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,1,5,2,7,3] => [1,4,5,2,6,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,1,5,3,2,7] => [1,4,5,3,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,6,1,5,3,7,2] => [1,4,5,3,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,6,1,5,7,2,3] => [1,4,5,7,3,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,6,1,5,7,3,2] => [1,4,5,7,2,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,6,1,7,2,3,5] => [1,4,7,5,2,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,6,1,7,2,5,3] => [1,4,7,3,2,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,6,1,7,3,2,5] => [1,4,7,5,3,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,6,1,7,3,5,2] => [1,4,7,2,6,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,1,7,5,2,3] => [1,4,7,3,2,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,6,1,7,5,3,2] => [1,4,7,2,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,2,1,3,5,7] => [1,4,2,6,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,2,1,3,7,5] => [1,4,2,6,7,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,2,1,5,3,7] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,2,1,5,7,3] => [1,4,2,6,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,2,1,7,3,5] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,2,1,7,5,3] => [1,4,2,6,5,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,2,3,1,5,7] => [1,4,3,2,6,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,2,3,1,7,5] => [1,4,3,2,6,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,2,3,5,1,7] => [1,4,3,2,6,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,2,3,5,7,1] => [1,4,3,2,6,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,2,3,7,1,5] => [1,4,3,2,6,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,2,3,7,5,1] => [1,4,3,2,6,5,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,6,2,5,1,3,7] => [1,4,5,2,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,2,5,1,7,3] => [1,4,5,2,6,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,2,5,3,1,7] => [1,4,5,3,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,6,2,5,3,7,1] => [1,4,5,3,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,6,2,5,7,1,3] => [1,4,5,7,3,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,6,2,5,7,3,1] => [1,4,5,7,2,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,6,2,7,1,3,5] => [1,4,7,5,2,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,6,2,7,1,5,3] => [1,4,7,3,2,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,6,2,7,3,1,5] => [1,4,7,5,3,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,6,2,7,3,5,1] => [1,4,7,2,6,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,2,7,5,1,3] => [1,4,7,3,2,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,6,2,7,5,3,1] => [1,4,7,2,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,3,1,2,5,7] => [1,4,2,6,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,1,2,7,5] => [1,4,2,6,7,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,1,5,2,7] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,1,5,7,2] => [1,4,2,6,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,1,7,2,5] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,1,7,5,2] => [1,4,2,6,5,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,2,1,5,7] => [1,4,2,6,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,2,1,7,5] => [1,4,2,6,7,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,2,5,1,7] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,2,5,7,1] => [1,4,2,6,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,2,7,1,5] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,2,7,5,1] => [1,4,2,6,5,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,3,5,1,2,7] => [1,4,5,2,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,3,5,1,7,2] => [1,4,5,2,6,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,3,5,2,1,7] => [1,4,5,2,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,3,5,2,7,1] => [1,4,5,2,6,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,3,5,7,1,2] => [1,4,5,7,2,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,6,3,5,7,2,1] => [1,4,5,7,2,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,6,3,7,1,2,5] => [1,4,7,5,2,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,6,3,7,1,5,2] => [1,4,7,2,6,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,3,7,2,1,5] => [1,4,7,5,2,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,6,3,7,2,5,1] => [1,4,7,2,6,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,3,7,5,1,2] => [1,4,7,2,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,3,7,5,2,1] => [1,4,7,2,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,5,1,2,3,7] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,1,2,7,3] => [1,4,2,6,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,1,3,2,7] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,1,3,7,2] => [1,4,2,6,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,1,7,2,3] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,1,7,3,2] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,2,1,3,7] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,2,1,7,3] => [1,4,2,6,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,2,3,1,7] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,2,3,7,1] => [1,4,2,6,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,2,7,1,3] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,2,7,3,1] => [1,4,2,6,3,5,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,5,3,1,2,7] => [1,4,3,5,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,6,5,3,1,7,2] => [1,4,3,5,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,6,5,3,2,1,7] => [1,4,3,5,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,6,5,3,2,7,1] => [1,4,3,5,2,6,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,6,5,3,7,1,2] => [1,4,3,5,7,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,6,5,3,7,2,1] => [1,4,3,5,7,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,6,5,7,1,2,3] => [1,4,7,3,5,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,6,5,7,1,3,2] => [1,4,7,2,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,5,7,2,1,3] => [1,4,7,3,5,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,6,5,7,2,3,1] => [1,4,7,2,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,5,7,3,1,2] => [1,4,7,2,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,5,7,3,2,1] => [1,4,7,2,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,6,7,1,2,3,5] => [1,4,2,6,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,1,2,5,3] => [1,4,2,6,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,1,3,2,5] => [1,4,2,6,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,1,3,5,2] => [1,4,2,6,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,1,5,2,3] => [1,4,2,6,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,1,5,3,2] => [1,4,2,6,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,2,1,3,5] => [1,4,2,6,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,2,1,5,3] => [1,4,2,6,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,2,3,1,5] => [1,4,2,6,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,2,3,5,1] => [1,4,2,6,5,3,7] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,2,5,1,3] => [1,4,2,6,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,2,5,3,1] => [1,4,2,6,3,7,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,6,7,3,1,2,5] => [1,4,3,7,5,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,6,7,3,1,5,2] => [1,4,3,7,2,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,6,7,3,2,1,5] => [1,4,3,7,5,2,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,6,7,3,2,5,1] => [1,4,3,7,2,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,6,7,3,5,1,2] => [1,4,3,7,2,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,6,7,3,5,2,1] => [1,4,3,7,2,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,6,7,5,1,2,3] => [1,4,5,2,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,7,5,1,3,2] => [1,4,5,2,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,7,5,2,1,3] => [1,4,5,2,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,7,5,2,3,1] => [1,4,5,2,6,3,7] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,6,7,5,3,1,2] => [1,4,5,3,7,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,6,7,5,3,2,1] => [1,4,5,3,7,2,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,1,2,3,5,6] => [1,4,2,7,6,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,1,2,3,6,5] => [1,4,2,7,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,1,2,5,3,6] => [1,4,2,7,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,1,2,5,6,3] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,1,2,6,3,5] => [1,4,2,7,5,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,1,2,6,5,3] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,1,3,2,5,6] => [1,4,3,2,7,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,7,1,3,2,6,5] => [1,4,3,2,7,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,7,1,3,5,2,6] => [1,4,3,2,7,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,7,1,3,5,6,2] => [1,4,3,2,7,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,7,1,3,6,2,5] => [1,4,3,2,7,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,7,1,3,6,5,2] => [1,4,3,2,7,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,7,1,5,2,3,6] => [1,4,5,2,7,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,1,5,2,6,3] => [1,4,5,2,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,1,5,3,2,6] => [1,4,5,3,2,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,1,5,3,6,2] => [1,4,5,3,2,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,1,5,6,2,3] => [1,4,5,6,2,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,7,1,5,6,3,2] => [1,4,5,6,3,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,7,1,6,2,3,5] => [1,4,6,3,2,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,1,6,2,5,3] => [1,4,6,5,2,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,1,6,3,2,5] => [1,4,6,2,7,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,1,6,3,5,2] => [1,4,6,5,3,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,1,6,5,2,3] => [1,4,6,2,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,1,6,5,3,2] => [1,4,6,3,2,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,2,1,3,5,6] => [1,4,2,7,6,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,2,1,3,6,5] => [1,4,2,7,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,2,1,5,3,6] => [1,4,2,7,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,2,1,5,6,3] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,2,1,6,3,5] => [1,4,2,7,5,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,2,1,6,5,3] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,2,3,1,5,6] => [1,4,3,2,7,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,7,2,3,1,6,5] => [1,4,3,2,7,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,7,2,3,5,1,6] => [1,4,3,2,7,6,5] => [.,[[[.,.],.],[[[.,.],.],.]]] => [[[],[],[[],[],[]]]] => 5
[4,7,2,3,5,6,1] => [1,4,3,2,7,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,7,2,3,6,1,5] => [1,4,3,2,7,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,7,2,3,6,5,1] => [1,4,3,2,7,5,6] => [.,[[[.,.],.],[[.,[.,.]],.]]] => [[[],[],[[[]],[]]]] => 4
[4,7,2,5,1,3,6] => [1,4,5,2,7,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,2,5,1,6,3] => [1,4,5,2,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,2,5,3,1,6] => [1,4,5,3,2,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,2,5,3,6,1] => [1,4,5,3,2,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,2,5,6,1,3] => [1,4,5,6,2,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,7,2,5,6,3,1] => [1,4,5,6,3,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,7,2,6,1,3,5] => [1,4,6,3,2,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,2,6,1,5,3] => [1,4,6,5,2,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,2,6,3,1,5] => [1,4,6,2,7,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,2,6,3,5,1] => [1,4,6,5,3,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,2,6,5,1,3] => [1,4,6,2,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,2,6,5,3,1] => [1,4,6,3,2,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,3,1,2,5,6] => [1,4,2,7,6,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,3,1,2,6,5] => [1,4,2,7,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,3,1,5,2,6] => [1,4,2,7,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,3,1,5,6,2] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,3,1,6,2,5] => [1,4,2,7,5,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,3,1,6,5,2] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,3,2,1,5,6] => [1,4,2,7,6,5,3] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,3,2,1,6,5] => [1,4,2,7,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,3,2,5,1,6] => [1,4,2,7,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,3,2,5,6,1] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,3,2,6,1,5] => [1,4,2,7,5,6,3] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,3,2,6,5,1] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,3,5,1,2,6] => [1,4,5,2,7,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,3,5,1,6,2] => [1,4,5,2,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,3,5,2,1,6] => [1,4,5,2,7,6,3] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,3,5,2,6,1] => [1,4,5,2,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,3,5,6,1,2] => [1,4,5,6,2,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,7,3,5,6,2,1] => [1,4,5,6,2,7,3] => [.,[[.,[.,.]],[.,[.,[.,.]]]]] => [[[[]],[[[[]]]]]] => 2
[4,7,3,6,1,2,5] => [1,4,6,2,7,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,3,6,1,5,2] => [1,4,6,5,2,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,3,6,2,1,5] => [1,4,6,2,7,5,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,3,6,2,5,1] => [1,4,6,5,2,7,3] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,3,6,5,1,2] => [1,4,6,2,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,3,6,5,2,1] => [1,4,6,2,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,5,1,2,3,6] => [1,4,2,7,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,5,1,2,6,3] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,5,1,3,2,6] => [1,4,2,7,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,5,1,3,6,2] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,5,1,6,2,3] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,5,1,6,3,2] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,5,2,1,3,6] => [1,4,2,7,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,5,2,1,6,3] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,5,2,3,1,6] => [1,4,2,7,6,3,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,5,2,3,6,1] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,5,2,6,1,3] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,5,2,6,3,1] => [1,4,2,7,3,5,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,5,3,1,2,6] => [1,4,3,5,2,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,5,3,1,6,2] => [1,4,3,5,2,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,5,3,2,1,6] => [1,4,3,5,2,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,5,3,2,6,1] => [1,4,3,5,2,7,6] => [.,[[[.,.],.],[.,[[.,.],.]]]] => [[[],[],[[[],[]]]]] => 4
[4,7,5,3,6,1,2] => [1,4,3,5,6,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,7,5,3,6,2,1] => [1,4,3,5,6,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,7,5,6,1,2,3] => [1,4,6,2,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,5,6,1,3,2] => [1,4,6,3,5,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,5,6,2,1,3] => [1,4,6,2,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,5,6,2,3,1] => [1,4,6,3,5,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,5,6,3,1,2] => [1,4,6,2,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,5,6,3,2,1] => [1,4,6,2,7,3,5] => [.,[[.,[.,.]],[[.,.],[.,.]]]] => [[[[]],[[],[[]]]]] => 3
[4,7,6,1,2,3,5] => [1,4,2,7,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,6,1,2,5,3] => [1,4,2,7,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,6,1,3,2,5] => [1,4,2,7,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,6,1,3,5,2] => [1,4,2,7,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,6,1,5,2,3] => [1,4,2,7,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,6,1,5,3,2] => [1,4,2,7,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,6,2,1,3,5] => [1,4,2,7,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,6,2,1,5,3] => [1,4,2,7,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,6,2,3,1,5] => [1,4,2,7,5,3,6] => [.,[[.,[.,.]],[[.,[.,.]],.]]] => [[[[]],[[[]],[]]]] => 3
[4,7,6,2,3,5,1] => [1,4,2,7,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,6,2,5,1,3] => [1,4,2,7,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,6,2,5,3,1] => [1,4,2,7,3,6,5] => [.,[[.,[.,.]],[[[.,.],.],.]]] => [[[[]],[[],[],[]]]] => 4
[4,7,6,3,1,2,5] => [1,4,3,6,2,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,6,3,1,5,2] => [1,4,3,6,5,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,6,3,2,1,5] => [1,4,3,6,2,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,6,3,2,5,1] => [1,4,3,6,5,2,7] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,6,3,5,1,2] => [1,4,3,6,2,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,6,3,5,2,1] => [1,4,3,6,2,7,5] => [.,[[[.,.],.],[[.,.],[.,.]]]] => [[[],[],[[],[[]]]]] => 4
[4,7,6,5,1,2,3] => [1,4,5,2,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,6,5,1,3,2] => [1,4,5,2,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,6,5,2,1,3] => [1,4,5,2,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,6,5,2,3,1] => [1,4,5,2,7,3,6] => [.,[[.,[.,.]],[.,[[.,.],.]]]] => [[[[]],[[[],[]]]]] => 3
[4,7,6,5,3,1,2] => [1,4,5,3,6,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[4,7,6,5,3,2,1] => [1,4,5,3,6,2,7] => [.,[[[.,.],.],[.,[.,[.,.]]]]] => [[[],[],[[[[]]]]]] => 3
[5,1,2,3,4,6,7] => [1,5,4,3,2,6,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,2,3,4,7,6] => [1,5,4,3,2,6,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,2,3,6,4,7] => [1,5,6,4,3,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,2,3,6,7,4] => [1,5,6,7,4,3,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,2,3,7,4,6] => [1,5,7,6,4,3,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,2,3,7,6,4] => [1,5,7,4,3,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,2,4,3,6,7] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,2,4,3,7,6] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,2,4,6,3,7] => [1,5,6,3,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,2,4,6,7,3] => [1,5,6,7,3,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,2,4,7,3,6] => [1,5,7,6,3,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,2,4,7,6,3] => [1,5,7,3,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,2,6,3,4,7] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,2,6,3,7,4] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,2,6,4,3,7] => [1,5,4,6,3,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,2,6,4,7,3] => [1,5,4,6,7,3,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,2,6,7,3,4] => [1,5,7,4,6,3,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,2,6,7,4,3] => [1,5,7,3,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,2,7,3,4,6] => [1,5,3,2,4,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,2,7,3,6,4] => [1,5,3,2,4,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,2,7,4,3,6] => [1,5,4,7,6,3,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,2,7,4,6,3] => [1,5,4,7,3,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,2,7,6,3,4] => [1,5,6,3,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,2,7,6,4,3] => [1,5,6,4,7,3,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,3,2,4,6,7] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,3,2,4,7,6] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,3,2,6,4,7] => [1,5,6,4,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,3,2,6,7,4] => [1,5,6,7,4,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,3,2,7,4,6] => [1,5,7,6,4,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,3,2,7,6,4] => [1,5,7,4,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,3,4,2,6,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,3,4,2,7,6] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,3,4,6,2,7] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,3,4,6,7,2] => [1,5,6,7,2,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,3,4,7,2,6] => [1,5,7,6,2,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,3,4,7,6,2] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,3,6,2,4,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,3,6,2,7,4] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,3,6,4,2,7] => [1,5,4,6,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,3,6,4,7,2] => [1,5,4,6,7,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,3,6,7,2,4] => [1,5,7,4,6,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,3,6,7,4,2] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,3,7,2,4,6] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,3,7,2,6,4] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,3,7,4,2,6] => [1,5,4,7,6,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,3,7,4,6,2] => [1,5,4,7,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,3,7,6,2,4] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,3,7,6,4,2] => [1,5,6,4,7,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,4,2,3,6,7] => [1,5,3,4,2,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,4,2,3,7,6] => [1,5,3,4,2,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,4,2,6,3,7] => [1,5,6,3,4,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,4,2,6,7,3] => [1,5,6,7,3,4,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,4,2,7,3,6] => [1,5,7,6,3,4,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,4,2,7,6,3] => [1,5,7,3,4,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,4,3,2,6,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,4,3,2,7,6] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,4,3,6,2,7] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,4,3,6,7,2] => [1,5,6,7,2,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,4,3,7,2,6] => [1,5,7,6,2,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,4,3,7,6,2] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,4,6,2,3,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,4,6,2,7,3] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,4,6,3,2,7] => [1,5,3,4,6,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,4,6,3,7,2] => [1,5,3,4,6,7,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,4,6,7,2,3] => [1,5,7,3,4,6,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,4,6,7,3,2] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,4,7,2,3,6] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,4,7,2,6,3] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,4,7,3,2,6] => [1,5,3,4,7,6,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,4,7,3,6,2] => [1,5,3,4,7,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,4,7,6,2,3] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,4,7,6,3,2] => [1,5,6,3,4,7,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,6,2,3,4,7] => [1,5,3,6,4,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,6,2,3,7,4] => [1,5,3,6,7,4,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,6,2,4,3,7] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,6,2,4,7,3] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,6,2,7,3,4] => [1,5,7,4,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,6,2,7,4,3] => [1,5,7,3,6,4,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,6,3,2,4,7] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,6,3,2,7,4] => [1,5,2,3,6,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,6,3,4,2,7] => [1,5,4,3,6,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,6,3,4,7,2] => [1,5,4,3,6,7,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,6,3,7,2,4] => [1,5,7,4,3,6,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,6,3,7,4,2] => [1,5,7,2,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,6,4,2,3,7] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,6,4,2,7,3] => [1,5,2,3,6,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,6,4,3,2,7] => [1,5,3,6,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,6,4,3,7,2] => [1,5,3,6,7,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,6,4,7,2,3] => [1,5,7,3,6,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,6,4,7,3,2] => [1,5,7,2,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,6,7,2,3,4] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,6,7,2,4,3] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,6,7,3,2,4] => [1,5,3,6,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,6,7,3,4,2] => [1,5,3,6,4,7,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,6,7,4,2,3] => [1,5,4,7,3,6,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,6,7,4,3,2] => [1,5,4,7,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,7,2,3,4,6] => [1,5,3,7,6,4,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,7,2,3,6,4] => [1,5,3,7,4,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,7,2,4,3,6] => [1,5,4,2,3,7,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,7,2,4,6,3] => [1,5,4,2,3,7,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,1,7,2,6,3,4] => [1,5,6,3,7,4,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,7,2,6,4,3] => [1,5,6,4,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,7,3,2,4,6] => [1,5,2,3,7,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,7,3,2,6,4] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,7,3,4,2,6] => [1,5,4,3,7,6,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,7,3,4,6,2] => [1,5,4,3,7,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,1,7,3,6,2,4] => [1,5,6,2,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,7,3,6,4,2] => [1,5,6,4,3,7,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,1,7,4,2,3,6] => [1,5,2,3,7,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,7,4,2,6,3] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,7,4,3,2,6] => [1,5,3,7,6,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,7,4,3,6,2] => [1,5,3,7,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,7,4,6,2,3] => [1,5,6,2,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,1,7,4,6,3,2] => [1,5,6,3,7,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,1,7,6,2,3,4] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,7,6,2,4,3] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,1,7,6,3,2,4] => [1,5,3,7,4,6,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,7,6,3,4,2] => [1,5,3,7,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,1,7,6,4,2,3] => [1,5,4,6,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,1,7,6,4,3,2] => [1,5,4,6,3,7,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,1,3,4,6,7] => [1,5,4,3,2,6,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,1,3,4,7,6] => [1,5,4,3,2,6,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,1,3,6,4,7] => [1,5,6,4,3,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,1,3,6,7,4] => [1,5,6,7,4,3,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,1,3,7,4,6] => [1,5,7,6,4,3,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,1,3,7,6,4] => [1,5,7,4,3,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,1,4,3,6,7] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,1,4,3,7,6] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,1,4,6,3,7] => [1,5,6,3,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,1,4,6,7,3] => [1,5,6,7,3,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,1,4,7,3,6] => [1,5,7,6,3,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,1,4,7,6,3] => [1,5,7,3,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,1,6,3,4,7] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,1,6,3,7,4] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,1,6,4,3,7] => [1,5,4,6,3,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,1,6,4,7,3] => [1,5,4,6,7,3,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,1,6,7,3,4] => [1,5,7,4,6,3,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,1,6,7,4,3] => [1,5,7,3,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,1,7,3,4,6] => [1,5,3,2,4,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,1,7,3,6,4] => [1,5,3,2,4,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,1,7,4,3,6] => [1,5,4,7,6,3,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,1,7,4,6,3] => [1,5,4,7,3,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,1,7,6,3,4] => [1,5,6,3,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,1,7,6,4,3] => [1,5,6,4,7,3,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,3,1,4,6,7] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,3,1,4,7,6] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,3,1,6,4,7] => [1,5,6,4,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,3,1,6,7,4] => [1,5,6,7,4,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,3,1,7,4,6] => [1,5,7,6,4,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,3,1,7,6,4] => [1,5,7,4,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,3,4,1,6,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,3,4,1,7,6] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,3,4,6,1,7] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,3,4,6,7,1] => [1,5,6,7,2,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,3,4,7,1,6] => [1,5,7,6,2,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,3,4,7,6,1] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,3,6,1,4,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,3,6,1,7,4] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,3,6,4,1,7] => [1,5,4,6,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,3,6,4,7,1] => [1,5,4,6,7,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,3,6,7,1,4] => [1,5,7,4,6,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,3,6,7,4,1] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,3,7,1,4,6] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,3,7,1,6,4] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,3,7,4,1,6] => [1,5,4,7,6,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,3,7,4,6,1] => [1,5,4,7,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,3,7,6,1,4] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,3,7,6,4,1] => [1,5,6,4,7,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,4,1,3,6,7] => [1,5,3,4,2,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,4,1,3,7,6] => [1,5,3,4,2,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,4,1,6,3,7] => [1,5,6,3,4,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,4,1,6,7,3] => [1,5,6,7,3,4,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,4,1,7,3,6] => [1,5,7,6,3,4,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,4,1,7,6,3] => [1,5,7,3,4,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,4,3,1,6,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,4,3,1,7,6] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,4,3,6,1,7] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,4,3,6,7,1] => [1,5,6,7,2,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,4,3,7,1,6] => [1,5,7,6,2,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,4,3,7,6,1] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,4,6,1,3,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,4,6,1,7,3] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,4,6,3,1,7] => [1,5,3,4,6,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,4,6,3,7,1] => [1,5,3,4,6,7,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,4,6,7,1,3] => [1,5,7,3,4,6,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,4,6,7,3,1] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,4,7,1,3,6] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,4,7,1,6,3] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,4,7,3,1,6] => [1,5,3,4,7,6,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,4,7,3,6,1] => [1,5,3,4,7,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,4,7,6,1,3] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,4,7,6,3,1] => [1,5,6,3,4,7,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,6,1,3,4,7] => [1,5,3,6,4,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,6,1,3,7,4] => [1,5,3,6,7,4,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,6,1,4,3,7] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,6,1,4,7,3] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,6,1,7,3,4] => [1,5,7,4,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,6,1,7,4,3] => [1,5,7,3,6,4,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,6,3,1,4,7] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,6,3,1,7,4] => [1,5,2,3,6,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,6,3,4,1,7] => [1,5,4,3,6,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,6,3,4,7,1] => [1,5,4,3,6,7,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,6,3,7,1,4] => [1,5,7,4,3,6,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,6,3,7,4,1] => [1,5,7,2,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,6,4,1,3,7] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,6,4,1,7,3] => [1,5,2,3,6,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,6,4,3,1,7] => [1,5,3,6,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,6,4,3,7,1] => [1,5,3,6,7,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,6,4,7,1,3] => [1,5,7,3,6,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,6,4,7,3,1] => [1,5,7,2,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,6,7,1,3,4] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,6,7,1,4,3] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,6,7,3,1,4] => [1,5,3,6,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,6,7,3,4,1] => [1,5,3,6,4,7,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,6,7,4,1,3] => [1,5,4,7,3,6,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,6,7,4,3,1] => [1,5,4,7,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,7,1,3,4,6] => [1,5,3,7,6,4,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,7,1,3,6,4] => [1,5,3,7,4,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,7,1,4,3,6] => [1,5,4,2,3,7,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,7,1,4,6,3] => [1,5,4,2,3,7,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,2,7,1,6,3,4] => [1,5,6,3,7,4,2] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,7,1,6,4,3] => [1,5,6,4,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,7,3,1,4,6] => [1,5,2,3,7,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,7,3,1,6,4] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,7,3,4,1,6] => [1,5,4,3,7,6,2] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,7,3,4,6,1] => [1,5,4,3,7,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,2,7,3,6,1,4] => [1,5,6,2,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,7,3,6,4,1] => [1,5,6,4,3,7,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,2,7,4,1,3,6] => [1,5,2,3,7,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,7,4,1,6,3] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,7,4,3,1,6] => [1,5,3,7,6,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,7,4,3,6,1] => [1,5,3,7,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,7,4,6,1,3] => [1,5,6,2,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,2,7,4,6,3,1] => [1,5,6,3,7,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,2,7,6,1,3,4] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,7,6,1,4,3] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,2,7,6,3,1,4] => [1,5,3,7,4,6,2] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,7,6,3,4,1] => [1,5,3,7,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,2,7,6,4,1,3] => [1,5,4,6,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,2,7,6,4,3,1] => [1,5,4,6,3,7,2] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,3,1,2,4,6,7] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,1,2,4,7,6] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,1,2,6,4,7] => [1,5,6,4,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,1,2,6,7,4] => [1,5,6,7,4,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,1,2,7,4,6] => [1,5,7,6,4,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,1,2,7,6,4] => [1,5,7,4,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,1,4,2,6,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,1,4,2,7,6] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,1,4,6,2,7] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,1,4,6,7,2] => [1,5,6,7,2,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,1,4,7,2,6] => [1,5,7,6,2,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,1,4,7,6,2] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,1,6,2,4,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,1,6,2,7,4] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,1,6,4,2,7] => [1,5,4,6,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,1,6,4,7,2] => [1,5,4,6,7,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,1,6,7,2,4] => [1,5,7,4,6,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,1,6,7,4,2] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,1,7,2,4,6] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,1,7,2,6,4] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,1,7,4,2,6] => [1,5,4,7,6,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,1,7,4,6,2] => [1,5,4,7,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,1,7,6,2,4] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,1,7,6,4,2] => [1,5,6,4,7,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,2,1,4,6,7] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,2,1,4,7,6] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,2,1,6,4,7] => [1,5,6,4,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,2,1,6,7,4] => [1,5,6,7,4,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,2,1,7,4,6] => [1,5,7,6,4,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,2,1,7,6,4] => [1,5,7,4,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,2,4,1,6,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,2,4,1,7,6] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,2,4,6,1,7] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,2,4,6,7,1] => [1,5,6,7,2,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,2,4,7,1,6] => [1,5,7,6,2,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,2,4,7,6,1] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,2,6,1,4,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,2,6,1,7,4] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,2,6,4,1,7] => [1,5,4,6,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,2,6,4,7,1] => [1,5,4,6,7,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,2,6,7,1,4] => [1,5,7,4,6,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,2,6,7,4,1] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,2,7,1,4,6] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,2,7,1,6,4] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,2,7,4,1,6] => [1,5,4,7,6,2,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,2,7,4,6,1] => [1,5,4,7,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,2,7,6,1,4] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,2,7,6,4,1] => [1,5,6,4,7,2,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,4,1,2,6,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,1,2,7,6] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,1,6,2,7] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,1,6,7,2] => [1,5,6,7,2,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,1,7,2,6] => [1,5,7,6,2,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,1,7,6,2] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,2,1,6,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,2,1,7,6] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,2,6,1,7] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,2,6,7,1] => [1,5,6,7,2,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,2,7,1,6] => [1,5,7,6,2,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,2,7,6,1] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,6,1,2,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,6,1,7,2] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,6,2,1,7] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,6,2,7,1] => [1,5,2,3,4,6,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,6,7,1,2] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,6,7,2,1] => [1,5,7,2,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,7,1,2,6] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,7,1,6,2] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,7,2,1,6] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,7,2,6,1] => [1,5,2,3,4,7,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,4,7,6,1,2] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,4,7,6,2,1] => [1,5,6,2,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,1,2,4,7] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,1,2,7,4] => [1,5,2,3,6,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,1,4,2,7] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,6,1,4,7,2] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,6,1,7,2,4] => [1,5,7,4,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,6,1,7,4,2] => [1,5,7,2,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,6,2,1,4,7] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,2,1,7,4] => [1,5,2,3,6,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,2,4,1,7] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,6,2,4,7,1] => [1,5,4,2,3,6,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,6,2,7,1,4] => [1,5,7,4,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,6,2,7,4,1] => [1,5,7,2,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,6,4,1,2,7] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,4,1,7,2] => [1,5,2,3,6,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,4,2,1,7] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,4,2,7,1] => [1,5,2,3,6,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,4,7,1,2] => [1,5,7,2,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,6,4,7,2,1] => [1,5,7,2,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,6,7,1,2,4] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,7,1,4,2] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,7,2,1,4] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,7,2,4,1] => [1,5,2,3,6,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,6,7,4,1,2] => [1,5,4,7,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,6,7,4,2,1] => [1,5,4,7,2,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,7,1,2,4,6] => [1,5,2,3,7,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,1,2,6,4] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,1,4,2,6] => [1,5,4,2,3,7,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,7,1,4,6,2] => [1,5,4,2,3,7,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,7,1,6,2,4] => [1,5,6,2,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,7,1,6,4,2] => [1,5,6,4,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,7,2,1,4,6] => [1,5,2,3,7,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,2,1,6,4] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,2,4,1,6] => [1,5,4,2,3,7,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,7,2,4,6,1] => [1,5,4,2,3,7,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,3,7,2,6,1,4] => [1,5,6,2,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,7,2,6,4,1] => [1,5,6,4,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,7,4,1,2,6] => [1,5,2,3,7,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,4,1,6,2] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,4,2,1,6] => [1,5,2,3,7,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,4,2,6,1] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,4,6,1,2] => [1,5,6,2,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,7,4,6,2,1] => [1,5,6,2,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,3,7,6,1,2,4] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,6,1,4,2] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,6,2,1,4] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,6,2,4,1] => [1,5,2,3,7,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,3,7,6,4,1,2] => [1,5,4,6,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,3,7,6,4,2,1] => [1,5,4,6,2,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,4,1,2,3,6,7] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,1,2,3,7,6] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,1,2,6,3,7] => [1,5,6,3,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,1,2,6,7,3] => [1,5,6,7,3,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,1,2,7,3,6] => [1,5,7,6,3,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,1,2,7,6,3] => [1,5,7,3,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,1,3,2,6,7] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,1,3,2,7,6] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,1,3,6,2,7] => [1,5,6,2,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,1,3,6,7,2] => [1,5,6,7,2,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,1,3,7,2,6] => [1,5,7,6,2,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,1,3,7,6,2] => [1,5,7,2,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,1,6,2,3,7] => [1,5,2,4,6,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,1,6,2,7,3] => [1,5,2,4,6,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,1,6,3,2,7] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,1,6,3,7,2] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,1,6,7,2,3] => [1,5,7,3,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,1,6,7,3,2] => [1,5,7,2,4,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,1,7,2,3,6] => [1,5,2,4,7,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,1,7,2,6,3] => [1,5,2,4,7,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,1,7,3,2,6] => [1,5,3,2,4,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,1,7,3,6,2] => [1,5,3,2,4,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,1,7,6,2,3] => [1,5,6,2,4,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,1,7,6,3,2] => [1,5,6,3,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,2,1,3,6,7] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,2,1,3,7,6] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,2,1,6,3,7] => [1,5,6,3,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,2,1,6,7,3] => [1,5,6,7,3,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,2,1,7,3,6] => [1,5,7,6,3,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,2,1,7,6,3] => [1,5,7,3,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,2,3,1,6,7] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,2,3,1,7,6] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,2,3,6,1,7] => [1,5,6,2,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,2,3,6,7,1] => [1,5,6,7,2,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,2,3,7,1,6] => [1,5,7,6,2,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,2,3,7,6,1] => [1,5,7,2,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,2,6,1,3,7] => [1,5,2,4,6,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,2,6,1,7,3] => [1,5,2,4,6,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,2,6,3,1,7] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,2,6,3,7,1] => [1,5,3,2,4,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,2,6,7,1,3] => [1,5,7,3,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,2,6,7,3,1] => [1,5,7,2,4,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,2,7,1,3,6] => [1,5,2,4,7,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,2,7,1,6,3] => [1,5,2,4,7,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,2,7,3,1,6] => [1,5,3,2,4,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,2,7,3,6,1] => [1,5,3,2,4,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,2,7,6,1,3] => [1,5,6,2,4,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,2,7,6,3,1] => [1,5,6,3,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,3,1,2,6,7] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,1,2,7,6] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,1,6,2,7] => [1,5,6,2,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,1,6,7,2] => [1,5,6,7,2,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,1,7,2,6] => [1,5,7,6,2,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,1,7,6,2] => [1,5,7,2,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,2,1,6,7] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,2,1,7,6] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,2,6,1,7] => [1,5,6,2,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,2,6,7,1] => [1,5,6,7,2,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,2,7,1,6] => [1,5,7,6,2,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,2,7,6,1] => [1,5,7,2,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,6,1,2,7] => [1,5,2,4,6,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,6,1,7,2] => [1,5,2,4,6,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,6,2,1,7] => [1,5,2,4,6,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,6,2,7,1] => [1,5,2,4,6,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,6,7,1,2] => [1,5,7,2,4,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,6,7,2,1] => [1,5,7,2,4,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,7,1,2,6] => [1,5,2,4,7,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,7,1,6,2] => [1,5,2,4,7,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,7,2,1,6] => [1,5,2,4,7,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,7,2,6,1] => [1,5,2,4,7,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,3,7,6,1,2] => [1,5,6,2,4,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,3,7,6,2,1] => [1,5,6,2,4,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,1,2,3,7] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,1,2,7,3] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,1,3,2,7] => [1,5,3,6,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,6,1,3,7,2] => [1,5,3,6,7,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,6,1,7,2,3] => [1,5,7,3,6,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,6,1,7,3,2] => [1,5,7,2,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,6,2,1,3,7] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,2,1,7,3] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,2,3,1,7] => [1,5,3,6,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,6,2,3,7,1] => [1,5,3,6,7,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,6,2,7,1,3] => [1,5,7,3,6,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,6,2,7,3,1] => [1,5,7,2,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,6,3,1,2,7] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,3,1,7,2] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,3,2,1,7] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,3,2,7,1] => [1,5,2,4,3,6,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,6,3,7,1,2] => [1,5,7,2,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,6,3,7,2,1] => [1,5,7,2,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,6,7,1,2,3] => [1,5,2,4,7,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,6,7,1,3,2] => [1,5,2,4,7,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,6,7,2,1,3] => [1,5,2,4,7,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,6,7,2,3,1] => [1,5,2,4,7,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,6,7,3,1,2] => [1,5,3,6,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,6,7,3,2,1] => [1,5,3,6,2,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,7,1,2,3,6] => [1,5,2,4,3,7,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,7,1,2,6,3] => [1,5,2,4,3,7,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,7,1,3,2,6] => [1,5,3,7,6,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,7,1,3,6,2] => [1,5,3,7,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,7,1,6,2,3] => [1,5,6,2,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,7,1,6,3,2] => [1,5,6,3,7,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,7,2,1,3,6] => [1,5,2,4,3,7,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,7,2,1,6,3] => [1,5,2,4,3,7,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,7,2,3,1,6] => [1,5,3,7,6,2,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,7,2,3,6,1] => [1,5,3,7,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,7,2,6,1,3] => [1,5,6,2,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,7,2,6,3,1] => [1,5,6,3,7,2,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,4,7,3,1,2,6] => [1,5,2,4,3,7,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,7,3,1,6,2] => [1,5,2,4,3,7,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,7,3,2,1,6] => [1,5,2,4,3,7,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,7,3,2,6,1] => [1,5,2,4,3,7,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,4,7,3,6,1,2] => [1,5,6,2,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,7,3,6,2,1] => [1,5,6,2,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,7,6,1,2,3] => [1,5,2,4,6,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,7,6,1,3,2] => [1,5,2,4,6,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,7,6,2,1,3] => [1,5,2,4,6,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,7,6,2,3,1] => [1,5,2,4,6,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,4,7,6,3,1,2] => [1,5,3,7,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,4,7,6,3,2,1] => [1,5,3,7,2,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,1,2,3,4,7] => [1,5,3,2,6,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,1,2,3,7,4] => [1,5,3,2,6,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,1,2,4,3,7] => [1,5,4,2,6,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,1,2,4,7,3] => [1,5,4,2,6,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,1,2,7,3,4] => [1,5,7,4,2,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,6,1,2,7,4,3] => [1,5,7,3,2,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,1,3,2,4,7] => [1,5,2,6,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,1,3,2,7,4] => [1,5,2,6,7,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,1,3,4,2,7] => [1,5,4,3,2,6,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,6,1,3,4,7,2] => [1,5,4,3,2,6,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,6,1,3,7,2,4] => [1,5,7,4,3,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,6,1,3,7,4,2] => [1,5,7,2,6,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,6,1,4,2,3,7] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,1,4,2,7,3] => [1,5,2,6,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,1,4,3,2,7] => [1,5,3,2,6,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,1,4,3,7,2] => [1,5,3,2,6,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,1,4,7,2,3] => [1,5,7,3,2,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,1,4,7,3,2] => [1,5,7,2,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,6,1,7,2,3,4] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,1,7,2,4,3] => [1,5,2,6,4,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,1,7,3,2,4] => [1,5,3,2,6,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,1,7,3,4,2] => [1,5,3,2,6,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,1,7,4,2,3] => [1,5,4,7,3,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,6,1,7,4,3,2] => [1,5,4,7,2,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,6,2,1,3,4,7] => [1,5,3,2,6,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,2,1,3,7,4] => [1,5,3,2,6,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,2,1,4,3,7] => [1,5,4,2,6,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,2,1,4,7,3] => [1,5,4,2,6,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,2,1,7,3,4] => [1,5,7,4,2,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,6,2,1,7,4,3] => [1,5,7,3,2,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,2,3,1,4,7] => [1,5,2,6,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,2,3,1,7,4] => [1,5,2,6,7,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,2,3,4,1,7] => [1,5,4,3,2,6,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,6,2,3,4,7,1] => [1,5,4,3,2,6,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,6,2,3,7,1,4] => [1,5,7,4,3,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,6,2,3,7,4,1] => [1,5,7,2,6,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,6,2,4,1,3,7] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,2,4,1,7,3] => [1,5,2,6,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,2,4,3,1,7] => [1,5,3,2,6,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,2,4,3,7,1] => [1,5,3,2,6,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,2,4,7,1,3] => [1,5,7,3,2,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,2,4,7,3,1] => [1,5,7,2,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,6,2,7,1,3,4] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,2,7,1,4,3] => [1,5,2,6,4,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,2,7,3,1,4] => [1,5,3,2,6,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,2,7,3,4,1] => [1,5,3,2,6,4,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,2,7,4,1,3] => [1,5,4,7,3,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,6,2,7,4,3,1] => [1,5,4,7,2,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,6,3,1,2,4,7] => [1,5,2,6,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,3,1,2,7,4] => [1,5,2,6,7,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,3,1,4,2,7] => [1,5,4,2,6,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,3,1,4,7,2] => [1,5,4,2,6,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,3,1,7,2,4] => [1,5,7,4,2,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,6,3,1,7,4,2] => [1,5,7,2,6,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,6,3,2,1,4,7] => [1,5,2,6,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,3,2,1,7,4] => [1,5,2,6,7,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,3,2,4,1,7] => [1,5,4,2,6,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,3,2,4,7,1] => [1,5,4,2,6,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,3,2,7,1,4] => [1,5,7,4,2,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,6,3,2,7,4,1] => [1,5,7,2,6,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,6,3,4,1,2,7] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,3,4,1,7,2] => [1,5,2,6,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,3,4,2,1,7] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,3,4,2,7,1] => [1,5,2,6,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,3,4,7,1,2] => [1,5,7,2,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,6,3,4,7,2,1] => [1,5,7,2,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,6,3,7,1,2,4] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,3,7,1,4,2] => [1,5,2,6,4,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,3,7,2,1,4] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,3,7,2,4,1] => [1,5,2,6,4,7,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,3,7,4,1,2] => [1,5,4,7,2,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,6,3,7,4,2,1] => [1,5,4,7,2,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,6,4,1,2,3,7] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,1,2,7,3] => [1,5,2,6,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,1,3,2,7] => [1,5,3,4,2,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,4,1,3,7,2] => [1,5,3,4,2,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,4,1,7,2,3] => [1,5,7,3,4,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,4,1,7,3,2] => [1,5,7,2,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,6,4,2,1,3,7] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,2,1,7,3] => [1,5,2,6,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,2,3,1,7] => [1,5,3,4,2,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,4,2,3,7,1] => [1,5,3,4,2,6,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,6,4,2,7,1,3] => [1,5,7,3,4,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,4,2,7,3,1] => [1,5,7,2,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,6,4,3,1,2,7] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,3,1,7,2] => [1,5,2,6,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,3,2,1,7] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,3,2,7,1] => [1,5,2,6,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,3,7,1,2] => [1,5,7,2,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,6,4,3,7,2,1] => [1,5,7,2,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,6,4,7,1,2,3] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,7,1,3,2] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,7,2,1,3] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,7,2,3,1] => [1,5,2,6,3,4,7] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,4,7,3,1,2] => [1,5,3,4,7,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,4,7,3,2,1] => [1,5,3,4,7,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,7,1,2,3,4] => [1,5,2,6,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,7,1,2,4,3] => [1,5,2,6,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,7,1,3,2,4] => [1,5,3,7,4,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,7,1,3,4,2] => [1,5,3,7,2,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,7,1,4,2,3] => [1,5,4,2,6,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,7,1,4,3,2] => [1,5,4,2,6,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,7,2,1,3,4] => [1,5,2,6,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,7,2,1,4,3] => [1,5,2,6,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,7,2,3,1,4] => [1,5,3,7,4,2,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,7,2,3,4,1] => [1,5,3,7,2,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,7,2,4,1,3] => [1,5,4,2,6,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,7,2,4,3,1] => [1,5,4,2,6,3,7] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,6,7,3,1,2,4] => [1,5,2,6,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,7,3,1,4,2] => [1,5,2,6,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,7,3,2,1,4] => [1,5,2,6,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,7,3,2,4,1] => [1,5,2,6,4,3,7] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,6,7,3,4,1,2] => [1,5,4,3,7,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,6,7,3,4,2,1] => [1,5,4,3,7,2,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,6,7,4,1,2,3] => [1,5,2,6,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,7,4,1,3,2] => [1,5,2,6,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,7,4,2,1,3] => [1,5,2,6,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,7,4,2,3,1] => [1,5,2,6,3,7,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,6,7,4,3,1,2] => [1,5,3,7,2,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,6,7,4,3,2,1] => [1,5,3,7,2,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,1,2,3,4,6] => [1,5,3,2,7,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,1,2,3,6,4] => [1,5,3,2,7,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,1,2,4,3,6] => [1,5,4,2,7,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,1,2,4,6,3] => [1,5,4,2,7,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,1,2,6,3,4] => [1,5,6,3,2,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,1,2,6,4,3] => [1,5,6,4,2,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,7,1,3,2,4,6] => [1,5,2,7,6,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,1,3,2,6,4] => [1,5,2,7,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,1,3,4,2,6] => [1,5,4,3,2,7,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,7,1,3,4,6,2] => [1,5,4,3,2,7,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,7,1,3,6,2,4] => [1,5,6,2,7,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,7,1,3,6,4,2] => [1,5,6,4,3,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,7,1,4,2,3,6] => [1,5,2,7,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,1,4,2,6,3] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,1,4,3,2,6] => [1,5,3,2,7,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,1,4,3,6,2] => [1,5,3,2,7,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,1,4,6,2,3] => [1,5,6,2,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,7,1,4,6,3,2] => [1,5,6,3,2,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,1,6,2,3,4] => [1,5,2,7,4,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,1,6,2,4,3] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,1,6,3,2,4] => [1,5,3,2,7,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,1,6,3,4,2] => [1,5,3,2,7,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,1,6,4,2,3] => [1,5,4,6,2,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,7,1,6,4,3,2] => [1,5,4,6,3,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,7,2,1,3,4,6] => [1,5,3,2,7,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,2,1,3,6,4] => [1,5,3,2,7,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,2,1,4,3,6] => [1,5,4,2,7,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,2,1,4,6,3] => [1,5,4,2,7,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,2,1,6,3,4] => [1,5,6,3,2,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,2,1,6,4,3] => [1,5,6,4,2,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,7,2,3,1,4,6] => [1,5,2,7,6,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,2,3,1,6,4] => [1,5,2,7,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,2,3,4,1,6] => [1,5,4,3,2,7,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,7,2,3,4,6,1] => [1,5,4,3,2,7,6] => [.,[[[[.,.],.],.],[[.,.],.]]] => [[[],[],[],[[],[]]]] => 5
[5,7,2,3,6,1,4] => [1,5,6,2,7,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,7,2,3,6,4,1] => [1,5,6,4,3,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,7,2,4,1,3,6] => [1,5,2,7,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,2,4,1,6,3] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,2,4,3,1,6] => [1,5,3,2,7,6,4] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,2,4,3,6,1] => [1,5,3,2,7,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,2,4,6,1,3] => [1,5,6,2,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,7,2,4,6,3,1] => [1,5,6,3,2,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,2,6,1,3,4] => [1,5,2,7,4,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,2,6,1,4,3] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,2,6,3,1,4] => [1,5,3,2,7,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,2,6,3,4,1] => [1,5,3,2,7,4,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,2,6,4,1,3] => [1,5,4,6,2,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,7,2,6,4,3,1] => [1,5,4,6,3,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,7,3,1,2,4,6] => [1,5,2,7,6,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,3,1,2,6,4] => [1,5,2,7,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,3,1,4,2,6] => [1,5,4,2,7,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,3,1,4,6,2] => [1,5,4,2,7,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,3,1,6,2,4] => [1,5,6,2,7,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,7,3,1,6,4,2] => [1,5,6,4,2,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,7,3,2,1,4,6] => [1,5,2,7,6,4,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,3,2,1,6,4] => [1,5,2,7,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,3,2,4,1,6] => [1,5,4,2,7,6,3] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,3,2,4,6,1] => [1,5,4,2,7,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,3,2,6,1,4] => [1,5,6,2,7,4,3] => [.,[[.,[[.,.],.]],[.,[.,.]]]] => [[[[],[]],[[[]]]]] => 3
[5,7,3,2,6,4,1] => [1,5,6,4,2,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,7,3,4,1,2,6] => [1,5,2,7,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,3,4,1,6,2] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,3,4,2,1,6] => [1,5,2,7,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,3,4,2,6,1] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,3,4,6,1,2] => [1,5,6,2,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,7,3,4,6,2,1] => [1,5,6,2,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,7,3,6,1,2,4] => [1,5,2,7,4,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,3,6,1,4,2] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,3,6,2,1,4] => [1,5,2,7,4,6,3] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,3,6,2,4,1] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,3,6,4,1,2] => [1,5,4,6,2,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,7,3,6,4,2,1] => [1,5,4,6,2,7,3] => [.,[[[.,[.,.]],.],[.,[.,.]]]] => [[[[]],[],[[[]]]]] => 3
[5,7,4,1,2,3,6] => [1,5,2,7,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,1,2,6,3] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,1,3,2,6] => [1,5,3,4,2,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,4,1,3,6,2] => [1,5,3,4,2,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,4,1,6,2,3] => [1,5,6,2,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,7,4,1,6,3,2] => [1,5,6,3,4,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,4,2,1,3,6] => [1,5,2,7,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,2,1,6,3] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,2,3,1,6] => [1,5,3,4,2,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,4,2,3,6,1] => [1,5,3,4,2,7,6] => [.,[[[.,.],[.,.]],[[.,.],.]]] => [[[],[[]],[[],[]]]] => 4
[5,7,4,2,6,1,3] => [1,5,6,2,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,7,4,2,6,3,1] => [1,5,6,3,4,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,4,3,1,2,6] => [1,5,2,7,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,3,1,6,2] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,3,2,1,6] => [1,5,2,7,6,3,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,3,2,6,1] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,3,6,1,2] => [1,5,6,2,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,7,4,3,6,2,1] => [1,5,6,2,7,3,4] => [.,[[.,[.,[.,.]]],[.,[.,.]]]] => [[[[[]]],[[[]]]]] => 2
[5,7,4,6,1,2,3] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,6,1,3,2] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,6,2,1,3] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,6,2,3,1] => [1,5,2,7,3,4,6] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,4,6,3,1,2] => [1,5,3,4,6,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,4,6,3,2,1] => [1,5,3,4,6,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,6,1,2,3,4] => [1,5,2,7,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,6,1,2,4,3] => [1,5,2,7,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,6,1,3,2,4] => [1,5,3,6,2,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,6,1,3,4,2] => [1,5,3,6,4,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,6,1,4,2,3] => [1,5,4,2,7,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,6,1,4,3,2] => [1,5,4,2,7,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,6,2,1,3,4] => [1,5,2,7,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,6,2,1,4,3] => [1,5,2,7,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,6,2,3,1,4] => [1,5,3,6,2,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,6,2,3,4,1] => [1,5,3,6,4,2,7] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,6,2,4,1,3] => [1,5,4,2,7,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,6,2,4,3,1] => [1,5,4,2,7,3,6] => [.,[[[.,[.,.]],.],[[.,.],.]]] => [[[[]],[],[[],[]]]] => 4
[5,7,6,3,1,2,4] => [1,5,2,7,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,6,3,1,4,2] => [1,5,2,7,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,6,3,2,1,4] => [1,5,2,7,4,3,6] => [.,[[.,[[.,.],.]],[[.,.],.]]] => [[[[],[]],[[],[]]]] => 4
[5,7,6,3,2,4,1] => [1,5,2,7,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,6,3,4,1,2] => [1,5,4,3,6,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,7,6,3,4,2,1] => [1,5,4,3,6,2,7] => [.,[[[[.,.],.],.],[.,[.,.]]]] => [[[],[],[],[[[]]]]] => 4
[5,7,6,4,1,2,3] => [1,5,2,7,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,6,4,1,3,2] => [1,5,2,7,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,6,4,2,1,3] => [1,5,2,7,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,6,4,2,3,1] => [1,5,2,7,3,6,4] => [.,[[.,[.,[.,.]]],[[.,.],.]]] => [[[[[]]],[[],[]]]] => 3
[5,7,6,4,3,1,2] => [1,5,3,6,2,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[5,7,6,4,3,2,1] => [1,5,3,6,2,7,4] => [.,[[[.,.],[.,.]],[.,[.,.]]]] => [[[],[[]],[[[]]]]] => 3
[6,1,2,3,4,5,7] => [1,6,5,4,3,2,7] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,1,2,3,4,7,5] => [1,6,7,5,4,3,2] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,1,2,3,5,4,7] => [1,6,4,3,2,5,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,2,3,5,7,4] => [1,6,7,4,3,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,2,3,7,4,5] => [1,6,4,3,2,5,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,2,3,7,5,4] => [1,6,5,7,4,3,2] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,1,2,4,3,5,7] => [1,6,5,3,2,4,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,2,4,3,7,5] => [1,6,7,5,3,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,2,4,5,3,7] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,2,4,5,7,3] => [1,6,7,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,2,4,7,3,5] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,2,4,7,5,3] => [1,6,5,7,3,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,2,5,3,4,7] => [1,6,4,5,3,2,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,2,5,3,7,4] => [1,6,7,4,5,3,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,2,5,4,3,7] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,2,5,4,7,3] => [1,6,7,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,2,5,7,3,4] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,2,5,7,4,3] => [1,6,4,5,7,3,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,2,7,3,4,5] => [1,6,4,7,5,3,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,2,7,3,5,4] => [1,6,5,3,2,4,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,2,7,4,3,5] => [1,6,3,2,4,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,2,7,4,5,3] => [1,6,5,4,7,3,2] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,1,2,7,5,3,4] => [1,6,3,2,4,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,2,7,5,4,3] => [1,6,4,7,3,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,3,2,4,5,7] => [1,6,5,4,2,3,7] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,1,3,2,4,7,5] => [1,6,7,5,4,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,1,3,2,5,4,7] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,3,2,5,7,4] => [1,6,7,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,3,2,7,4,5] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,3,2,7,5,4] => [1,6,5,7,4,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,1,3,4,2,5,7] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,3,4,2,7,5] => [1,6,7,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,3,4,5,2,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,3,4,5,7,2] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,3,4,7,2,5] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,3,4,7,5,2] => [1,6,5,7,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,3,5,2,4,7] => [1,6,4,5,2,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,3,5,2,7,4] => [1,6,7,4,5,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,3,5,4,2,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,3,5,4,7,2] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,3,5,7,2,4] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,3,5,7,4,2] => [1,6,4,5,7,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,3,7,2,4,5] => [1,6,4,7,5,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,3,7,2,5,4] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,3,7,4,2,5] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,3,7,4,5,2] => [1,6,5,4,7,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,1,3,7,5,2,4] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,3,7,5,4,2] => [1,6,4,7,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,4,2,3,5,7] => [1,6,5,3,4,2,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,4,2,3,7,5] => [1,6,7,5,3,4,2] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,4,2,5,3,7] => [1,6,3,4,2,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,4,2,5,7,3] => [1,6,7,3,4,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,4,2,7,3,5] => [1,6,3,4,2,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,4,2,7,5,3] => [1,6,5,7,3,4,2] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,4,3,2,5,7] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,4,3,2,7,5] => [1,6,7,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,4,3,5,2,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,4,3,5,7,2] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,4,3,7,2,5] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,4,3,7,5,2] => [1,6,5,7,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,4,5,2,3,7] => [1,6,3,4,5,2,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,4,5,2,7,3] => [1,6,7,3,4,5,2] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,4,5,3,2,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,4,5,3,7,2] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,4,5,7,2,3] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,4,5,7,3,2] => [1,6,3,4,5,7,2] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,4,7,2,3,5] => [1,6,3,4,7,5,2] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,4,7,2,5,3] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,4,7,3,2,5] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,4,7,3,5,2] => [1,6,5,3,4,7,2] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,4,7,5,2,3] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,4,7,5,3,2] => [1,6,3,4,7,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,5,2,3,4,7] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,5,2,3,7,4] => [1,6,7,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,5,2,4,3,7] => [1,6,3,5,4,2,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,5,2,4,7,3] => [1,6,7,3,5,4,2] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,5,2,7,3,4] => [1,6,3,5,7,4,2] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,5,2,7,4,3] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,5,3,2,4,7] => [1,6,4,3,5,2,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,5,3,2,7,4] => [1,6,7,4,3,5,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,5,3,4,2,7] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,5,3,4,7,2] => [1,6,7,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,5,3,7,2,4] => [1,6,2,3,5,7,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,5,3,7,4,2] => [1,6,4,3,5,7,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,5,4,2,3,7] => [1,6,3,5,2,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,5,4,2,7,3] => [1,6,7,3,5,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,5,4,3,2,7] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,5,4,3,7,2] => [1,6,7,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,5,4,7,2,3] => [1,6,2,3,5,7,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,5,4,7,3,2] => [1,6,3,5,7,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,5,7,2,3,4] => [1,6,3,5,2,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,5,7,2,4,3] => [1,6,4,7,3,5,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,5,7,3,2,4] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,5,7,3,4,2] => [1,6,4,7,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,5,7,4,2,3] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,5,7,4,3,2] => [1,6,3,5,4,7,2] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,7,2,3,4,5] => [1,6,4,2,3,7,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,7,2,3,5,4] => [1,6,5,3,7,4,2] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,7,2,4,3,5] => [1,6,3,7,5,4,2] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,7,2,4,5,3] => [1,6,5,4,2,3,7] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,1,7,2,5,3,4] => [1,6,3,7,4,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,7,2,5,4,3] => [1,6,4,2,3,7,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,7,3,2,4,5] => [1,6,4,3,7,5,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,7,3,2,5,4] => [1,6,5,2,3,7,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,7,3,4,2,5] => [1,6,2,3,7,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,7,3,4,5,2] => [1,6,5,4,3,7,2] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,1,7,3,5,2,4] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,7,3,5,4,2] => [1,6,4,3,7,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,7,4,2,3,5] => [1,6,3,7,5,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,1,7,4,2,5,3] => [1,6,5,2,3,7,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,1,7,4,3,2,5] => [1,6,2,3,7,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,1,7,4,3,5,2] => [1,6,5,3,7,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,1,7,4,5,2,3] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,7,4,5,3,2] => [1,6,3,7,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,7,5,2,3,4] => [1,6,3,7,4,5,2] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,1,7,5,2,4,3] => [1,6,4,5,2,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,1,7,5,3,2,4] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,7,5,3,4,2] => [1,6,4,5,3,7,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,1,7,5,4,2,3] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,1,7,5,4,3,2] => [1,6,3,7,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,3,4,5,7] => [1,6,5,4,3,2,7] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,2,1,3,4,7,5] => [1,6,7,5,4,3,2] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,2,1,3,5,4,7] => [1,6,4,3,2,5,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,1,3,5,7,4] => [1,6,7,4,3,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,1,3,7,4,5] => [1,6,4,3,2,5,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,1,3,7,5,4] => [1,6,5,7,4,3,2] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,2,1,4,3,5,7] => [1,6,5,3,2,4,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,1,4,3,7,5] => [1,6,7,5,3,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,1,4,5,3,7] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,4,5,7,3] => [1,6,7,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,4,7,3,5] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,4,7,5,3] => [1,6,5,7,3,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,1,5,3,4,7] => [1,6,4,5,3,2,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,1,5,3,7,4] => [1,6,7,4,5,3,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,1,5,4,3,7] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,5,4,7,3] => [1,6,7,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,5,7,3,4] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,5,7,4,3] => [1,6,4,5,7,3,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,1,7,3,4,5] => [1,6,4,7,5,3,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,1,7,3,5,4] => [1,6,5,3,2,4,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,1,7,4,3,5] => [1,6,3,2,4,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,7,4,5,3] => [1,6,5,4,7,3,2] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,2,1,7,5,3,4] => [1,6,3,2,4,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,1,7,5,4,3] => [1,6,4,7,3,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,3,1,4,5,7] => [1,6,5,4,2,3,7] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,2,3,1,4,7,5] => [1,6,7,5,4,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,2,3,1,5,4,7] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,3,1,5,7,4] => [1,6,7,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,3,1,7,4,5] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,3,1,7,5,4] => [1,6,5,7,4,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,2,3,4,1,5,7] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,3,4,1,7,5] => [1,6,7,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,3,4,5,1,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,3,4,5,7,1] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,3,4,7,1,5] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,3,4,7,5,1] => [1,6,5,7,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,3,5,1,4,7] => [1,6,4,5,2,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,3,5,1,7,4] => [1,6,7,4,5,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,3,5,4,1,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,3,5,4,7,1] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,3,5,7,1,4] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,3,5,7,4,1] => [1,6,4,5,7,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,3,7,1,4,5] => [1,6,4,7,5,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,3,7,1,5,4] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,3,7,4,1,5] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,3,7,4,5,1] => [1,6,5,4,7,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,2,3,7,5,1,4] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,3,7,5,4,1] => [1,6,4,7,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,4,1,3,5,7] => [1,6,5,3,4,2,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,4,1,3,7,5] => [1,6,7,5,3,4,2] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,4,1,5,3,7] => [1,6,3,4,2,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,4,1,5,7,3] => [1,6,7,3,4,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,4,1,7,3,5] => [1,6,3,4,2,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,4,1,7,5,3] => [1,6,5,7,3,4,2] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,4,3,1,5,7] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,4,3,1,7,5] => [1,6,7,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,4,3,5,1,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,4,3,5,7,1] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,4,3,7,1,5] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,4,3,7,5,1] => [1,6,5,7,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,4,5,1,3,7] => [1,6,3,4,5,2,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,4,5,1,7,3] => [1,6,7,3,4,5,2] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,4,5,3,1,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,4,5,3,7,1] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,4,5,7,1,3] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,4,5,7,3,1] => [1,6,3,4,5,7,2] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,4,7,1,3,5] => [1,6,3,4,7,5,2] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,4,7,1,5,3] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,4,7,3,1,5] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,4,7,3,5,1] => [1,6,5,3,4,7,2] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,4,7,5,1,3] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,4,7,5,3,1] => [1,6,3,4,7,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,5,1,3,4,7] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,5,1,3,7,4] => [1,6,7,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,5,1,4,3,7] => [1,6,3,5,4,2,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,5,1,4,7,3] => [1,6,7,3,5,4,2] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,5,1,7,3,4] => [1,6,3,5,7,4,2] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,5,1,7,4,3] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,5,3,1,4,7] => [1,6,4,3,5,2,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,5,3,1,7,4] => [1,6,7,4,3,5,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,5,3,4,1,7] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,5,3,4,7,1] => [1,6,7,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,5,3,7,1,4] => [1,6,2,3,5,7,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,5,3,7,4,1] => [1,6,4,3,5,7,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,5,4,1,3,7] => [1,6,3,5,2,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,5,4,1,7,3] => [1,6,7,3,5,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,5,4,3,1,7] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,5,4,3,7,1] => [1,6,7,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,5,4,7,1,3] => [1,6,2,3,5,7,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,5,4,7,3,1] => [1,6,3,5,7,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,5,7,1,3,4] => [1,6,3,5,2,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,5,7,1,4,3] => [1,6,4,7,3,5,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,5,7,3,1,4] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,5,7,3,4,1] => [1,6,4,7,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,5,7,4,1,3] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,5,7,4,3,1] => [1,6,3,5,4,7,2] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,7,1,3,4,5] => [1,6,4,2,3,7,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,7,1,3,5,4] => [1,6,5,3,7,4,2] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,7,1,4,3,5] => [1,6,3,7,5,4,2] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,7,1,4,5,3] => [1,6,5,4,2,3,7] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,2,7,1,5,3,4] => [1,6,3,7,4,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,7,1,5,4,3] => [1,6,4,2,3,7,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,7,3,1,4,5] => [1,6,4,3,7,5,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,7,3,1,5,4] => [1,6,5,2,3,7,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,7,3,4,1,5] => [1,6,2,3,7,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,7,3,4,5,1] => [1,6,5,4,3,7,2] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,2,7,3,5,1,4] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,7,3,5,4,1] => [1,6,4,3,7,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,7,4,1,3,5] => [1,6,3,7,5,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,2,7,4,1,5,3] => [1,6,5,2,3,7,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,2,7,4,3,1,5] => [1,6,2,3,7,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,2,7,4,3,5,1] => [1,6,5,3,7,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,2,7,4,5,1,3] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,7,4,5,3,1] => [1,6,3,7,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,7,5,1,3,4] => [1,6,3,7,4,5,2] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,2,7,5,1,4,3] => [1,6,4,5,2,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,2,7,5,3,1,4] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,7,5,3,4,1] => [1,6,4,5,3,7,2] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,2,7,5,4,1,3] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,2,7,5,4,3,1] => [1,6,3,7,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,3,1,2,4,5,7] => [1,6,5,4,2,3,7] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,1,2,4,7,5] => [1,6,7,5,4,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,1,2,5,4,7] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,1,2,5,7,4] => [1,6,7,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,1,2,7,4,5] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,1,2,7,5,4] => [1,6,5,7,4,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,1,4,2,5,7] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,1,4,2,7,5] => [1,6,7,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,1,4,5,2,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,1,4,5,7,2] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,1,4,7,2,5] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,1,4,7,5,2] => [1,6,5,7,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,1,5,2,4,7] => [1,6,4,5,2,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,1,5,2,7,4] => [1,6,7,4,5,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,1,5,4,2,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,1,5,4,7,2] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,1,5,7,2,4] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,1,5,7,4,2] => [1,6,4,5,7,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,1,7,2,4,5] => [1,6,4,7,5,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,1,7,2,5,4] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,1,7,4,2,5] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,1,7,4,5,2] => [1,6,5,4,7,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,1,7,5,2,4] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,1,7,5,4,2] => [1,6,4,7,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,2,1,4,5,7] => [1,6,5,4,2,3,7] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,2,1,4,7,5] => [1,6,7,5,4,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,2,1,5,4,7] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,2,1,5,7,4] => [1,6,7,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,2,1,7,4,5] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,2,1,7,5,4] => [1,6,5,7,4,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,2,4,1,5,7] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,2,4,1,7,5] => [1,6,7,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,2,4,5,1,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,2,4,5,7,1] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,2,4,7,1,5] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,2,4,7,5,1] => [1,6,5,7,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,2,5,1,4,7] => [1,6,4,5,2,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,2,5,1,7,4] => [1,6,7,4,5,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,2,5,4,1,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,2,5,4,7,1] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,2,5,7,1,4] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,2,5,7,4,1] => [1,6,4,5,7,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,2,7,1,4,5] => [1,6,4,7,5,2,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,2,7,1,5,4] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,2,7,4,1,5] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,2,7,4,5,1] => [1,6,5,4,7,2,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,2,7,5,1,4] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,2,7,5,4,1] => [1,6,4,7,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,4,1,2,5,7] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,4,1,2,7,5] => [1,6,7,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,4,1,5,2,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,1,5,7,2] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,1,7,2,5] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,1,7,5,2] => [1,6,5,7,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,4,2,1,5,7] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,4,2,1,7,5] => [1,6,7,5,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,4,2,5,1,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,2,5,7,1] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,2,7,1,5] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,2,7,5,1] => [1,6,5,7,2,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,4,5,1,2,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,5,1,7,2] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,5,2,1,7] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,5,2,7,1] => [1,6,7,2,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,5,7,1,2] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,5,7,2,1] => [1,6,2,3,4,5,7] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,7,1,2,5] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,7,1,5,2] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,4,7,2,1,5] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,7,2,5,1] => [1,6,5,2,3,4,7] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,4,7,5,1,2] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,4,7,5,2,1] => [1,6,2,3,4,7,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,5,1,2,4,7] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,5,1,2,7,4] => [1,6,7,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,5,1,4,2,7] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,1,4,7,2] => [1,6,7,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,1,7,2,4] => [1,6,2,3,5,7,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,1,7,4,2] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,5,2,1,4,7] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,5,2,1,7,4] => [1,6,7,4,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,5,2,4,1,7] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,2,4,7,1] => [1,6,7,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,2,7,1,4] => [1,6,2,3,5,7,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,2,7,4,1] => [1,6,4,2,3,5,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,5,4,1,2,7] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,4,1,7,2] => [1,6,7,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,4,2,1,7] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,4,2,7,1] => [1,6,7,2,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,4,7,1,2] => [1,6,2,3,5,7,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,4,7,2,1] => [1,6,2,3,5,7,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,7,1,2,4] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,7,1,4,2] => [1,6,4,7,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,5,7,2,1,4] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,7,2,4,1] => [1,6,4,7,2,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,5,7,4,1,2] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,5,7,4,2,1] => [1,6,2,3,5,4,7] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,7,1,2,4,5] => [1,6,4,2,3,7,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,7,1,2,5,4] => [1,6,5,2,3,7,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,7,1,4,2,5] => [1,6,2,3,7,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,7,1,4,5,2] => [1,6,5,4,2,3,7] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,7,1,5,2,4] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,7,1,5,4,2] => [1,6,4,2,3,7,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,7,2,1,4,5] => [1,6,4,2,3,7,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,7,2,1,5,4] => [1,6,5,2,3,7,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,7,2,4,1,5] => [1,6,2,3,7,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,7,2,4,5,1] => [1,6,5,4,2,3,7] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,3,7,2,5,1,4] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,7,2,5,4,1] => [1,6,4,2,3,7,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,7,4,1,2,5] => [1,6,2,3,7,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,7,4,1,5,2] => [1,6,5,2,3,7,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,7,4,2,1,5] => [1,6,2,3,7,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,3,7,4,2,5,1] => [1,6,5,2,3,7,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,3,7,4,5,1,2] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,7,4,5,2,1] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,7,5,1,2,4] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,7,5,1,4,2] => [1,6,4,5,2,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,7,5,2,1,4] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,7,5,2,4,1] => [1,6,4,5,2,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,3,7,5,4,1,2] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,3,7,5,4,2,1] => [1,6,2,3,7,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,4,1,2,3,5,7] => [1,6,5,3,2,4,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,1,2,3,7,5] => [1,6,7,5,3,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,1,2,5,3,7] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,1,2,5,7,3] => [1,6,7,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,1,2,7,3,5] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,1,2,7,5,3] => [1,6,5,7,3,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,1,3,2,5,7] => [1,6,5,2,4,3,7] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,1,3,2,7,5] => [1,6,7,5,2,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,1,3,5,2,7] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,1,3,5,7,2] => [1,6,7,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,1,3,7,2,5] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,1,3,7,5,2] => [1,6,5,7,2,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,1,5,2,3,7] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,1,5,2,7,3] => [1,6,7,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,1,5,3,2,7] => [1,6,2,4,5,3,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,1,5,3,7,2] => [1,6,7,2,4,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,1,5,7,2,3] => [1,6,2,4,5,7,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,1,5,7,3,2] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,1,7,2,3,5] => [1,6,3,2,4,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,1,7,2,5,3] => [1,6,5,2,4,7,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,1,7,3,2,5] => [1,6,2,4,7,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,1,7,3,5,2] => [1,6,5,3,2,4,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,1,7,5,2,3] => [1,6,2,4,7,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,1,7,5,3,2] => [1,6,3,2,4,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,2,1,3,5,7] => [1,6,5,3,2,4,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,2,1,3,7,5] => [1,6,7,5,3,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,2,1,5,3,7] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,2,1,5,7,3] => [1,6,7,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,2,1,7,3,5] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,2,1,7,5,3] => [1,6,5,7,3,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,2,3,1,5,7] => [1,6,5,2,4,3,7] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,2,3,1,7,5] => [1,6,7,5,2,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,2,3,5,1,7] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,2,3,5,7,1] => [1,6,7,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,2,3,7,1,5] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,2,3,7,5,1] => [1,6,5,7,2,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,2,5,1,3,7] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,2,5,1,7,3] => [1,6,7,3,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,2,5,3,1,7] => [1,6,2,4,5,3,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,2,5,3,7,1] => [1,6,7,2,4,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,2,5,7,1,3] => [1,6,2,4,5,7,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,2,5,7,3,1] => [1,6,3,2,4,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,2,7,1,3,5] => [1,6,3,2,4,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,2,7,1,5,3] => [1,6,5,2,4,7,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,2,7,3,1,5] => [1,6,2,4,7,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,2,7,3,5,1] => [1,6,5,3,2,4,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,2,7,5,1,3] => [1,6,2,4,7,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,2,7,5,3,1] => [1,6,3,2,4,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,3,1,2,5,7] => [1,6,5,2,4,3,7] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,3,1,2,7,5] => [1,6,7,5,2,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,3,1,5,2,7] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,1,5,7,2] => [1,6,7,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,1,7,2,5] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,1,7,5,2] => [1,6,5,7,2,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,3,2,1,5,7] => [1,6,5,2,4,3,7] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,3,2,1,7,5] => [1,6,7,5,2,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,3,2,5,1,7] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,2,5,7,1] => [1,6,7,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,2,7,1,5] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,2,7,5,1] => [1,6,5,7,2,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,3,5,1,2,7] => [1,6,2,4,5,3,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,5,1,7,2] => [1,6,7,2,4,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,5,2,1,7] => [1,6,2,4,5,3,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,5,2,7,1] => [1,6,7,2,4,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,5,7,1,2] => [1,6,2,4,5,7,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,5,7,2,1] => [1,6,2,4,5,7,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,7,1,2,5] => [1,6,2,4,7,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,7,1,5,2] => [1,6,5,2,4,7,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,3,7,2,1,5] => [1,6,2,4,7,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,7,2,5,1] => [1,6,5,2,4,7,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,3,7,5,1,2] => [1,6,2,4,7,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,3,7,5,2,1] => [1,6,2,4,7,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,1,2,3,7] => [1,6,3,5,2,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,5,1,2,7,3] => [1,6,7,3,5,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,5,1,3,2,7] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,1,3,7,2] => [1,6,7,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,1,7,2,3] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,1,7,3,2] => [1,6,3,5,7,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,5,2,1,3,7] => [1,6,3,5,2,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,5,2,1,7,3] => [1,6,7,3,5,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,5,2,3,1,7] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,2,3,7,1] => [1,6,7,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,2,7,1,3] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,2,7,3,1] => [1,6,3,5,7,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,5,3,1,2,7] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,3,1,7,2] => [1,6,7,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,3,2,1,7] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,3,2,7,1] => [1,6,7,2,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,3,7,1,2] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,3,7,2,1] => [1,6,2,4,3,5,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,7,1,2,3] => [1,6,2,4,7,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,7,1,3,2] => [1,6,3,5,2,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,5,7,2,1,3] => [1,6,2,4,7,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,7,2,3,1] => [1,6,3,5,2,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,5,7,3,1,2] => [1,6,2,4,7,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,5,7,3,2,1] => [1,6,2,4,7,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,1,2,3,5] => [1,6,3,7,5,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,7,1,2,5,3] => [1,6,5,2,4,3,7] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,7,1,3,2,5] => [1,6,2,4,3,7,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,1,3,5,2] => [1,6,5,3,7,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,7,1,5,2,3] => [1,6,2,4,3,7,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,1,5,3,2] => [1,6,3,7,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,7,2,1,3,5] => [1,6,3,7,5,2,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,4,7,2,1,5,3] => [1,6,5,2,4,3,7] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,7,2,3,1,5] => [1,6,2,4,3,7,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,2,3,5,1] => [1,6,5,3,7,2,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,4,7,2,5,1,3] => [1,6,2,4,3,7,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,2,5,3,1] => [1,6,3,7,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,7,3,1,2,5] => [1,6,2,4,3,7,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,3,1,5,2] => [1,6,5,2,4,3,7] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,7,3,2,1,5] => [1,6,2,4,3,7,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,3,2,5,1] => [1,6,5,2,4,3,7] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,4,7,3,5,1,2] => [1,6,2,4,3,7,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,3,5,2,1] => [1,6,2,4,3,7,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,5,1,2,3] => [1,6,2,4,5,3,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,5,1,3,2] => [1,6,3,7,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,7,5,2,1,3] => [1,6,2,4,5,3,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,5,2,3,1] => [1,6,3,7,2,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,4,7,5,3,1,2] => [1,6,2,4,5,3,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,4,7,5,3,2,1] => [1,6,2,4,5,3,7] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,5,1,2,3,4,7] => [1,6,4,2,5,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,1,2,3,7,4] => [1,6,7,4,2,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,1,2,4,3,7] => [1,6,3,2,5,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,1,2,4,7,3] => [1,6,7,3,2,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,1,2,7,3,4] => [1,6,3,2,5,7,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,1,2,7,4,3] => [1,6,4,2,5,7,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,1,3,2,4,7] => [1,6,4,3,2,5,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,1,3,2,7,4] => [1,6,7,4,3,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,1,3,4,2,7] => [1,6,2,5,4,3,7] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,1,3,4,7,2] => [1,6,7,2,5,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,1,3,7,2,4] => [1,6,2,5,7,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,1,3,7,4,2] => [1,6,4,3,2,5,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,1,4,2,3,7] => [1,6,3,2,5,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,1,4,2,7,3] => [1,6,7,3,2,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,1,4,3,2,7] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,1,4,3,7,2] => [1,6,7,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,1,4,7,2,3] => [1,6,2,5,7,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,1,4,7,3,2] => [1,6,3,2,5,7,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,1,7,2,3,4] => [1,6,3,2,5,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,1,7,2,4,3] => [1,6,4,7,3,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,1,7,3,2,4] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,1,7,3,4,2] => [1,6,4,7,2,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,1,7,4,2,3] => [1,6,2,5,4,7,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,1,7,4,3,2] => [1,6,3,2,5,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,2,1,3,4,7] => [1,6,4,2,5,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,2,1,3,7,4] => [1,6,7,4,2,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,2,1,4,3,7] => [1,6,3,2,5,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,2,1,4,7,3] => [1,6,7,3,2,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,2,1,7,3,4] => [1,6,3,2,5,7,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,2,1,7,4,3] => [1,6,4,2,5,7,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,2,3,1,4,7] => [1,6,4,3,2,5,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,2,3,1,7,4] => [1,6,7,4,3,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,2,3,4,1,7] => [1,6,2,5,4,3,7] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,2,3,4,7,1] => [1,6,7,2,5,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,2,3,7,1,4] => [1,6,2,5,7,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,2,3,7,4,1] => [1,6,4,3,2,5,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,2,4,1,3,7] => [1,6,3,2,5,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,2,4,1,7,3] => [1,6,7,3,2,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,2,4,3,1,7] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,2,4,3,7,1] => [1,6,7,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,2,4,7,1,3] => [1,6,2,5,7,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,2,4,7,3,1] => [1,6,3,2,5,7,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,2,7,1,3,4] => [1,6,3,2,5,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,2,7,1,4,3] => [1,6,4,7,3,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,2,7,3,1,4] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,2,7,3,4,1] => [1,6,4,7,2,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,2,7,4,1,3] => [1,6,2,5,4,7,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,2,7,4,3,1] => [1,6,3,2,5,4,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,3,1,2,4,7] => [1,6,4,2,5,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,3,1,2,7,4] => [1,6,7,4,2,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,3,1,4,2,7] => [1,6,2,5,4,3,7] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,3,1,4,7,2] => [1,6,7,2,5,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,3,1,7,2,4] => [1,6,2,5,7,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,3,1,7,4,2] => [1,6,4,2,5,7,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,3,2,1,4,7] => [1,6,4,2,5,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,3,2,1,7,4] => [1,6,7,4,2,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,3,2,4,1,7] => [1,6,2,5,4,3,7] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,3,2,4,7,1] => [1,6,7,2,5,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,3,2,7,1,4] => [1,6,2,5,7,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,3,2,7,4,1] => [1,6,4,2,5,7,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,3,4,1,2,7] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,3,4,1,7,2] => [1,6,7,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,3,4,2,1,7] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,3,4,2,7,1] => [1,6,7,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,3,4,7,1,2] => [1,6,2,5,7,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,3,4,7,2,1] => [1,6,2,5,7,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,3,7,1,2,4] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,3,7,1,4,2] => [1,6,4,7,2,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,3,7,2,1,4] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,3,7,2,4,1] => [1,6,4,7,2,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,3,7,4,1,2] => [1,6,2,5,4,7,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,3,7,4,2,1] => [1,6,2,5,4,7,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,4,1,2,3,7] => [1,6,3,4,2,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,4,1,2,7,3] => [1,6,7,3,4,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,4,1,3,2,7] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,1,3,7,2] => [1,6,7,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,1,7,2,3] => [1,6,2,5,7,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,1,7,3,2] => [1,6,3,4,2,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,4,2,1,3,7] => [1,6,3,4,2,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,4,2,1,7,3] => [1,6,7,3,4,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,4,2,3,1,7] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,2,3,7,1] => [1,6,7,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,2,7,1,3] => [1,6,2,5,7,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,2,7,3,1] => [1,6,3,4,2,5,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,4,3,1,2,7] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,3,1,7,2] => [1,6,7,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,3,2,1,7] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,3,2,7,1] => [1,6,7,2,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,3,7,1,2] => [1,6,2,5,7,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,3,7,2,1] => [1,6,2,5,7,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,7,1,2,3] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,7,1,3,2] => [1,6,3,4,7,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,4,7,2,1,3] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,7,2,3,1] => [1,6,3,4,7,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,4,7,3,1,2] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,4,7,3,2,1] => [1,6,2,5,3,4,7] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,7,1,2,3,4] => [1,6,3,7,4,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,7,1,2,4,3] => [1,6,4,2,5,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,7,1,3,2,4] => [1,6,2,5,3,7,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,7,1,3,4,2] => [1,6,4,2,5,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,7,1,4,2,3] => [1,6,2,5,4,3,7] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,7,1,4,3,2] => [1,6,3,7,2,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,7,2,1,3,4] => [1,6,3,7,4,2,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,5,7,2,1,4,3] => [1,6,4,2,5,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,7,2,3,1,4] => [1,6,2,5,3,7,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,7,2,3,4,1] => [1,6,4,2,5,3,7] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,5,7,2,4,1,3] => [1,6,2,5,4,3,7] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,7,2,4,3,1] => [1,6,3,7,2,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,7,3,1,2,4] => [1,6,2,5,3,7,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,7,3,1,4,2] => [1,6,4,3,7,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,7,3,2,1,4] => [1,6,2,5,3,7,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,7,3,2,4,1] => [1,6,4,3,7,2,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,5,7,3,4,1,2] => [1,6,2,5,4,3,7] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,7,3,4,2,1] => [1,6,2,5,4,3,7] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,5,7,4,1,2,3] => [1,6,2,5,3,7,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,7,4,1,3,2] => [1,6,3,7,2,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,7,4,2,1,3] => [1,6,2,5,3,7,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,7,4,2,3,1] => [1,6,3,7,2,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,5,7,4,3,1,2] => [1,6,2,5,3,7,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,5,7,4,3,2,1] => [1,6,2,5,3,7,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,1,2,3,4,5] => [1,6,4,2,7,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,1,2,3,5,4] => [1,6,5,3,2,7,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,7,1,2,4,3,5] => [1,6,3,2,7,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,1,2,4,5,3] => [1,6,5,4,2,7,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,7,1,2,5,3,4] => [1,6,3,2,7,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,1,2,5,4,3] => [1,6,4,2,7,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,1,3,2,4,5] => [1,6,4,3,2,7,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,7,1,3,2,5,4] => [1,6,5,2,7,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,7,1,3,4,2,5] => [1,6,2,7,5,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,7,1,3,4,5,2] => [1,6,5,4,3,2,7] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,7,1,3,5,2,4] => [1,6,2,7,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,1,3,5,4,2] => [1,6,4,3,2,7,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,7,1,4,2,3,5] => [1,6,3,2,7,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,1,4,2,5,3] => [1,6,5,2,7,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,7,1,4,3,2,5] => [1,6,2,7,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,1,4,3,5,2] => [1,6,5,3,2,7,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,7,1,4,5,2,3] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,1,4,5,3,2] => [1,6,3,2,7,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,1,5,2,3,4] => [1,6,3,2,7,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,1,5,2,4,3] => [1,6,4,5,2,7,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,1,5,3,2,4] => [1,6,2,7,4,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,1,5,3,4,2] => [1,6,4,5,3,2,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,7,1,5,4,2,3] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,1,5,4,3,2] => [1,6,3,2,7,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,2,1,3,4,5] => [1,6,4,2,7,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,2,1,3,5,4] => [1,6,5,3,2,7,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,7,2,1,4,3,5] => [1,6,3,2,7,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,2,1,4,5,3] => [1,6,5,4,2,7,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,7,2,1,5,3,4] => [1,6,3,2,7,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,2,1,5,4,3] => [1,6,4,2,7,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,2,3,1,4,5] => [1,6,4,3,2,7,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,7,2,3,1,5,4] => [1,6,5,2,7,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,7,2,3,4,1,5] => [1,6,2,7,5,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,7,2,3,4,5,1] => [1,6,5,4,3,2,7] => [.,[[[[[.,.],.],.],.],[.,.]]] => [[[],[],[],[],[[]]]] => 5
[6,7,2,3,5,1,4] => [1,6,2,7,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,2,3,5,4,1] => [1,6,4,3,2,7,5] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,7,2,4,1,3,5] => [1,6,3,2,7,5,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,2,4,1,5,3] => [1,6,5,2,7,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,7,2,4,3,1,5] => [1,6,2,7,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,2,4,3,5,1] => [1,6,5,3,2,7,4] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,7,2,4,5,1,3] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,2,4,5,3,1] => [1,6,3,2,7,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,2,5,1,3,4] => [1,6,3,2,7,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,2,5,1,4,3] => [1,6,4,5,2,7,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,2,5,3,1,4] => [1,6,2,7,4,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,2,5,3,4,1] => [1,6,4,5,3,2,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,7,2,5,4,1,3] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,2,5,4,3,1] => [1,6,3,2,7,4,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,3,1,2,4,5] => [1,6,4,2,7,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,3,1,2,5,4] => [1,6,5,2,7,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,7,3,1,4,2,5] => [1,6,2,7,5,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,7,3,1,4,5,2] => [1,6,5,4,2,7,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,7,3,1,5,2,4] => [1,6,2,7,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,3,1,5,4,2] => [1,6,4,2,7,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,3,2,1,4,5] => [1,6,4,2,7,5,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,3,2,1,5,4] => [1,6,5,2,7,4,3] => [.,[[[.,[[.,.],.]],.],[.,.]]] => [[[[],[]],[],[[]]]] => 4
[6,7,3,2,4,1,5] => [1,6,2,7,5,4,3] => [.,[[.,[[[.,.],.],.]],[.,.]]] => [[[[],[],[]],[[]]]] => 4
[6,7,3,2,4,5,1] => [1,6,5,4,2,7,3] => [.,[[[[.,[.,.]],.],.],[.,.]]] => [[[[]],[],[],[[]]]] => 4
[6,7,3,2,5,1,4] => [1,6,2,7,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,3,2,5,4,1] => [1,6,4,2,7,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,3,4,1,2,5] => [1,6,2,7,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,3,4,1,5,2] => [1,6,5,2,7,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,7,3,4,2,1,5] => [1,6,2,7,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,3,4,2,5,1] => [1,6,5,2,7,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,7,3,4,5,1,2] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,3,4,5,2,1] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,3,5,1,2,4] => [1,6,2,7,4,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,3,5,1,4,2] => [1,6,4,5,2,7,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,3,5,2,1,4] => [1,6,2,7,4,5,3] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,3,5,2,4,1] => [1,6,4,5,2,7,3] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,3,5,4,1,2] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,3,5,4,2,1] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,4,1,2,3,5] => [1,6,3,4,2,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,4,1,2,5,3] => [1,6,5,2,7,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,7,4,1,3,2,5] => [1,6,2,7,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,4,1,3,5,2] => [1,6,5,3,4,2,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,7,4,1,5,2,3] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,4,1,5,3,2] => [1,6,3,4,2,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,4,2,1,3,5] => [1,6,3,4,2,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,4,2,1,5,3] => [1,6,5,2,7,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,7,4,2,3,1,5] => [1,6,2,7,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,4,2,3,5,1] => [1,6,5,3,4,2,7] => [.,[[[[.,.],[.,.]],.],[.,.]]] => [[[],[[]],[],[[]]]] => 4
[6,7,4,2,5,1,3] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,4,2,5,3,1] => [1,6,3,4,2,7,5] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,4,3,1,2,5] => [1,6,2,7,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,4,3,1,5,2] => [1,6,5,2,7,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,7,4,3,2,1,5] => [1,6,2,7,5,3,4] => [.,[[.,[[.,[.,.]],.]],[.,.]]] => [[[[[]],[]],[[]]]] => 3
[6,7,4,3,2,5,1] => [1,6,5,2,7,3,4] => [.,[[[.,[.,[.,.]]],.],[.,.]]] => [[[[[]]],[],[[]]]] => 3
[6,7,4,3,5,1,2] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,4,3,5,2,1] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,4,5,1,2,3] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,4,5,1,3,2] => [1,6,3,4,5,2,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,4,5,2,1,3] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,4,5,2,3,1] => [1,6,3,4,5,2,7] => [.,[[[.,.],[.,[.,.]]],[.,.]]] => [[[],[[[]]],[[]]]] => 3
[6,7,4,5,3,1,2] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,4,5,3,2,1] => [1,6,2,7,3,4,5] => [.,[[.,[.,[.,[.,.]]]],[.,.]]] => [[[[[[]]]],[[]]]] => 2
[6,7,5,1,2,3,4] => [1,6,3,5,2,7,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,5,1,2,4,3] => [1,6,4,2,7,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,5,1,3,2,4] => [1,6,2,7,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,5,1,3,4,2] => [1,6,4,2,7,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,5,1,4,2,3] => [1,6,2,7,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,7,5,1,4,3,2] => [1,6,3,5,4,2,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,5,2,1,3,4] => [1,6,3,5,2,7,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,5,2,1,4,3] => [1,6,4,2,7,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,5,2,3,1,4] => [1,6,2,7,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,5,2,3,4,1] => [1,6,4,2,7,3,5] => [.,[[[.,[.,.]],[.,.]],[.,.]]] => [[[[]],[[]],[[]]]] => 3
[6,7,5,2,4,1,3] => [1,6,2,7,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,7,5,2,4,3,1] => [1,6,3,5,4,2,7] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,5,3,1,2,4] => [1,6,2,7,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,5,3,1,4,2] => [1,6,4,3,5,2,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,7,5,3,2,1,4] => [1,6,2,7,4,3,5] => [.,[[.,[[.,.],[.,.]]],[.,.]]] => [[[[],[[]]],[[]]]] => 3
[6,7,5,3,2,4,1] => [1,6,4,3,5,2,7] => [.,[[[[.,.],.],[.,.]],[.,.]]] => [[[],[],[[]],[[]]]] => 4
[6,7,5,3,4,1,2] => [1,6,2,7,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,7,5,3,4,2,1] => [1,6,2,7,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,7,5,4,1,2,3] => [1,6,2,7,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,7,5,4,1,3,2] => [1,6,3,5,2,7,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,5,4,2,1,3] => [1,6,2,7,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,7,5,4,2,3,1] => [1,6,3,5,2,7,4] => [.,[[[.,.],[[.,.],.]],[.,.]]] => [[[],[[],[]],[[]]]] => 4
[6,7,5,4,3,1,2] => [1,6,2,7,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[6,7,5,4,3,2,1] => [1,6,2,7,3,5,4] => [.,[[.,[.,[[.,.],.]]],[.,.]]] => [[[[[],[]]],[[]]]] => 3
[7,1,2,3,4,5,6] => [1,7,6,5,4,3,2] => [.,[[[[[[.,.],.],.],.],.],.]] => [[[],[],[],[],[],[]]] => 6
[7,1,2,3,4,6,5] => [1,7,5,4,3,2,6] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,1,2,3,5,4,6] => [1,7,6,4,3,2,5] => [.,[[[[[.,.],.],[.,.]],.],.]] => [[[],[],[[]],[],[]]] => 5
[7,1,2,3,5,6,4] => [1,7,4,3,2,5,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,1,2,3,6,4,5] => [1,7,5,6,4,3,2] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,1,2,3,6,5,4] => [1,7,4,3,2,5,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,1,2,4,3,5,6] => [1,7,6,5,3,2,4] => [.,[[[[[.,.],[.,.]],.],.],.]] => [[[],[[]],[],[],[]]] => 5
[7,1,2,4,3,6,5] => [1,7,5,3,2,4,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,1,2,4,5,3,6] => [1,7,6,3,2,4,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,1,2,4,5,6,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,1,2,4,6,3,5] => [1,7,5,6,3,2,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,1,2,4,6,5,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,1,2,5,3,4,6] => [1,7,6,4,5,3,2] => [.,[[[[[.,.],.],[.,.]],.],.]] => [[[],[],[[]],[],[]]] => 5
[7,1,2,5,3,6,4] => [1,7,4,5,3,2,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,1,2,5,4,3,6] => [1,7,6,3,2,4,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,1,2,5,4,6,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,1,2,5,6,3,4] => [1,7,4,5,6,3,2] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,1,2,5,6,4,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,1,2,6,3,4,5] => [1,7,5,3,2,4,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,1,2,6,3,5,4] => [1,7,4,6,5,3,2] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,1,2,6,4,3,5] => [1,7,5,4,6,3,2] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,1,2,6,4,5,3] => [1,7,3,2,4,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,1,2,6,5,3,4] => [1,7,4,6,3,2,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,1,2,6,5,4,3] => [1,7,3,2,4,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,1,3,2,4,5,6] => [1,7,6,5,4,2,3] => [.,[[[[[.,[.,.]],.],.],.],.]] => [[[[]],[],[],[],[]]] => 5
[7,1,3,2,4,6,5] => [1,7,5,4,2,3,6] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,1,3,2,5,4,6] => [1,7,6,4,2,3,5] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,1,3,2,5,6,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,1,3,2,6,4,5] => [1,7,5,6,4,2,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,1,3,2,6,5,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,1,3,4,2,5,6] => [1,7,6,5,2,3,4] => [.,[[[[.,[.,[.,.]]],.],.],.]] => [[[[[]]],[],[],[]]] => 4
[7,1,3,4,2,6,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,1,3,4,5,2,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,1,3,4,5,6,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,1,3,4,6,2,5] => [1,7,5,6,2,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,1,3,4,6,5,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,1,3,5,2,4,6] => [1,7,6,4,5,2,3] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,1,3,5,2,6,4] => [1,7,4,5,2,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,1,3,5,4,2,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,1,3,5,4,6,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,1,3,5,6,2,4] => [1,7,4,5,6,2,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,1,3,5,6,4,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,1,3,6,2,4,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,1,3,6,2,5,4] => [1,7,4,6,5,2,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,1,3,6,4,2,5] => [1,7,5,4,6,2,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,1,3,6,4,5,2] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,1,3,6,5,2,4] => [1,7,4,6,2,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,1,3,6,5,4,2] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,1,4,2,3,5,6] => [1,7,6,5,3,4,2] => [.,[[[[[.,.],[.,.]],.],.],.]] => [[[],[[]],[],[],[]]] => 5
[7,1,4,2,3,6,5] => [1,7,5,3,4,2,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,1,4,2,5,3,6] => [1,7,6,3,4,2,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,1,4,2,5,6,3] => [1,7,3,4,2,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,1,4,2,6,3,5] => [1,7,5,6,3,4,2] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,1,4,2,6,5,3] => [1,7,3,4,2,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,1,4,3,2,5,6] => [1,7,6,5,2,3,4] => [.,[[[[.,[.,[.,.]]],.],.],.]] => [[[[[]]],[],[],[]]] => 4
[7,1,4,3,2,6,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,1,4,3,5,2,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,1,4,3,5,6,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,1,4,3,6,2,5] => [1,7,5,6,2,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,1,4,3,6,5,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,1,4,5,2,3,6] => [1,7,6,3,4,5,2] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,1,4,5,2,6,3] => [1,7,3,4,5,2,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,1,4,5,3,2,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,1,4,5,3,6,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,1,4,5,6,2,3] => [1,7,3,4,5,6,2] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,1,4,5,6,3,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,1,4,6,2,3,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,1,4,6,2,5,3] => [1,7,3,4,6,5,2] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,1,4,6,3,2,5] => [1,7,5,3,4,6,2] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,1,4,6,3,5,2] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,1,4,6,5,2,3] => [1,7,3,4,6,2,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,1,4,6,5,3,2] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,1,5,2,3,4,6] => [1,7,6,4,2,3,5] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,1,5,2,3,6,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,1,5,2,4,3,6] => [1,7,6,3,5,4,2] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,1,5,2,4,6,3] => [1,7,3,5,4,2,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,1,5,2,6,3,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,1,5,2,6,4,3] => [1,7,3,5,6,4,2] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,1,5,3,2,4,6] => [1,7,6,4,3,5,2] => [.,[[[[[.,.],.],[.,.]],.],.]] => [[[],[],[[]],[],[]]] => 5
[7,1,5,3,2,6,4] => [1,7,4,3,5,2,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,1,5,3,4,2,6] => [1,7,6,2,3,5,4] => [.,[[[.,[.,[[.,.],.]]],.],.]] => [[[[[],[]]],[],[]]] => 4
[7,1,5,3,4,6,2] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,1,5,3,6,2,4] => [1,7,4,3,5,6,2] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,1,5,3,6,4,2] => [1,7,2,3,5,6,4] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,1,5,4,2,3,6] => [1,7,6,3,5,2,4] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,1,5,4,2,6,3] => [1,7,3,5,2,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,1,5,4,3,2,6] => [1,7,6,2,3,5,4] => [.,[[[.,[.,[[.,.],.]]],.],.]] => [[[[[],[]]],[],[]]] => 4
[7,1,5,4,3,6,2] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,1,5,4,6,2,3] => [1,7,3,5,6,2,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,1,5,4,6,3,2] => [1,7,2,3,5,6,4] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,1,5,6,2,3,4] => [1,7,4,6,3,5,2] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,1,5,6,2,4,3] => [1,7,3,5,2,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,1,5,6,3,2,4] => [1,7,4,6,2,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,1,5,6,3,4,2] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,1,5,6,4,2,3] => [1,7,3,5,4,6,2] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,1,5,6,4,3,2] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,1,6,2,3,4,5] => [1,7,5,3,6,4,2] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,1,6,2,3,5,4] => [1,7,4,2,3,6,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,1,6,2,4,3,5] => [1,7,5,4,2,3,6] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,1,6,2,4,5,3] => [1,7,3,6,5,4,2] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,1,6,2,5,3,4] => [1,7,4,2,3,6,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,1,6,2,5,4,3] => [1,7,3,6,4,2,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,1,6,3,2,4,5] => [1,7,5,2,3,6,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,1,6,3,2,5,4] => [1,7,4,3,6,5,2] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,1,6,3,4,2,5] => [1,7,5,4,3,6,2] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,1,6,3,4,5,2] => [1,7,2,3,6,5,4] => [.,[[.,[.,[[[.,.],.],.]]],.]] => [[[[[],[],[]]],[]]] => 4
[7,1,6,3,5,2,4] => [1,7,4,3,6,2,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,1,6,3,5,4,2] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,1,6,4,2,3,5] => [1,7,5,2,3,6,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,1,6,4,2,5,3] => [1,7,3,6,5,2,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,1,6,4,3,2,5] => [1,7,5,3,6,2,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,1,6,4,3,5,2] => [1,7,2,3,6,5,4] => [.,[[.,[.,[[[.,.],.],.]]],.]] => [[[[[],[],[]]],[]]] => 4
[7,1,6,4,5,2,3] => [1,7,3,6,2,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,1,6,4,5,3,2] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,1,6,5,2,3,4] => [1,7,4,5,2,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,1,6,5,2,4,3] => [1,7,3,6,4,5,2] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,1,6,5,3,2,4] => [1,7,4,5,3,6,2] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,1,6,5,3,4,2] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,1,6,5,4,2,3] => [1,7,3,6,2,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,1,6,5,4,3,2] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,2,1,3,4,5,6] => [1,7,6,5,4,3,2] => [.,[[[[[[.,.],.],.],.],.],.]] => [[[],[],[],[],[],[]]] => 6
[7,2,1,3,4,6,5] => [1,7,5,4,3,2,6] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,2,1,3,5,4,6] => [1,7,6,4,3,2,5] => [.,[[[[[.,.],.],[.,.]],.],.]] => [[[],[],[[]],[],[]]] => 5
[7,2,1,3,5,6,4] => [1,7,4,3,2,5,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,2,1,3,6,4,5] => [1,7,5,6,4,3,2] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,2,1,3,6,5,4] => [1,7,4,3,2,5,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,2,1,4,3,5,6] => [1,7,6,5,3,2,4] => [.,[[[[[.,.],[.,.]],.],.],.]] => [[[],[[]],[],[],[]]] => 5
[7,2,1,4,3,6,5] => [1,7,5,3,2,4,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,2,1,4,5,3,6] => [1,7,6,3,2,4,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,2,1,4,5,6,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,2,1,4,6,3,5] => [1,7,5,6,3,2,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,2,1,4,6,5,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,2,1,5,3,4,6] => [1,7,6,4,5,3,2] => [.,[[[[[.,.],.],[.,.]],.],.]] => [[[],[],[[]],[],[]]] => 5
[7,2,1,5,3,6,4] => [1,7,4,5,3,2,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,2,1,5,4,3,6] => [1,7,6,3,2,4,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,2,1,5,4,6,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,2,1,5,6,3,4] => [1,7,4,5,6,3,2] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,2,1,5,6,4,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,2,1,6,3,4,5] => [1,7,5,3,2,4,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,2,1,6,3,5,4] => [1,7,4,6,5,3,2] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,2,1,6,4,3,5] => [1,7,5,4,6,3,2] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,2,1,6,4,5,3] => [1,7,3,2,4,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,2,1,6,5,3,4] => [1,7,4,6,3,2,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,2,1,6,5,4,3] => [1,7,3,2,4,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,2,3,1,4,5,6] => [1,7,6,5,4,2,3] => [.,[[[[[.,[.,.]],.],.],.],.]] => [[[[]],[],[],[],[]]] => 5
[7,2,3,1,4,6,5] => [1,7,5,4,2,3,6] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,2,3,1,5,4,6] => [1,7,6,4,2,3,5] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,2,3,1,5,6,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,2,3,1,6,4,5] => [1,7,5,6,4,2,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,2,3,1,6,5,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,2,3,4,1,5,6] => [1,7,6,5,2,3,4] => [.,[[[[.,[.,[.,.]]],.],.],.]] => [[[[[]]],[],[],[]]] => 4
[7,2,3,4,1,6,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,2,3,4,5,1,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,2,3,4,5,6,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,2,3,4,6,1,5] => [1,7,5,6,2,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,2,3,4,6,5,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,2,3,5,1,4,6] => [1,7,6,4,5,2,3] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,2,3,5,1,6,4] => [1,7,4,5,2,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,2,3,5,4,1,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,2,3,5,4,6,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,2,3,5,6,1,4] => [1,7,4,5,6,2,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,2,3,5,6,4,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,2,3,6,1,4,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,2,3,6,1,5,4] => [1,7,4,6,5,2,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,2,3,6,4,1,5] => [1,7,5,4,6,2,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,2,3,6,4,5,1] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,2,3,6,5,1,4] => [1,7,4,6,2,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,2,3,6,5,4,1] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,2,4,1,3,5,6] => [1,7,6,5,3,4,2] => [.,[[[[[.,.],[.,.]],.],.],.]] => [[[],[[]],[],[],[]]] => 5
[7,2,4,1,3,6,5] => [1,7,5,3,4,2,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,2,4,1,5,3,6] => [1,7,6,3,4,2,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,2,4,1,5,6,3] => [1,7,3,4,2,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,2,4,1,6,3,5] => [1,7,5,6,3,4,2] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,2,4,1,6,5,3] => [1,7,3,4,2,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,2,4,3,1,5,6] => [1,7,6,5,2,3,4] => [.,[[[[.,[.,[.,.]]],.],.],.]] => [[[[[]]],[],[],[]]] => 4
[7,2,4,3,1,6,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,2,4,3,5,1,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,2,4,3,5,6,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,2,4,3,6,1,5] => [1,7,5,6,2,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,2,4,3,6,5,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,2,4,5,1,3,6] => [1,7,6,3,4,5,2] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,2,4,5,1,6,3] => [1,7,3,4,5,2,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,2,4,5,3,1,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,2,4,5,3,6,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,2,4,5,6,1,3] => [1,7,3,4,5,6,2] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,2,4,5,6,3,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,2,4,6,1,3,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,2,4,6,1,5,3] => [1,7,3,4,6,5,2] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,2,4,6,3,1,5] => [1,7,5,3,4,6,2] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,2,4,6,3,5,1] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,2,4,6,5,1,3] => [1,7,3,4,6,2,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,2,4,6,5,3,1] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,2,5,1,3,4,6] => [1,7,6,4,2,3,5] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,2,5,1,3,6,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,2,5,1,4,3,6] => [1,7,6,3,5,4,2] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,2,5,1,4,6,3] => [1,7,3,5,4,2,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,2,5,1,6,3,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,2,5,1,6,4,3] => [1,7,3,5,6,4,2] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,2,5,3,1,4,6] => [1,7,6,4,3,5,2] => [.,[[[[[.,.],.],[.,.]],.],.]] => [[[],[],[[]],[],[]]] => 5
[7,2,5,3,1,6,4] => [1,7,4,3,5,2,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,2,5,3,4,1,6] => [1,7,6,2,3,5,4] => [.,[[[.,[.,[[.,.],.]]],.],.]] => [[[[[],[]]],[],[]]] => 4
[7,2,5,3,4,6,1] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,2,5,3,6,1,4] => [1,7,4,3,5,6,2] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,2,5,3,6,4,1] => [1,7,2,3,5,6,4] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,2,5,4,1,3,6] => [1,7,6,3,5,2,4] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,2,5,4,1,6,3] => [1,7,3,5,2,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,2,5,4,3,1,6] => [1,7,6,2,3,5,4] => [.,[[[.,[.,[[.,.],.]]],.],.]] => [[[[[],[]]],[],[]]] => 4
[7,2,5,4,3,6,1] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,2,5,4,6,1,3] => [1,7,3,5,6,2,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,2,5,4,6,3,1] => [1,7,2,3,5,6,4] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,2,5,6,1,3,4] => [1,7,4,6,3,5,2] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,2,5,6,1,4,3] => [1,7,3,5,2,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,2,5,6,3,1,4] => [1,7,4,6,2,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,2,5,6,3,4,1] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,2,5,6,4,1,3] => [1,7,3,5,4,6,2] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,2,5,6,4,3,1] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,2,6,1,3,4,5] => [1,7,5,3,6,4,2] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,2,6,1,3,5,4] => [1,7,4,2,3,6,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,2,6,1,4,3,5] => [1,7,5,4,2,3,6] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,2,6,1,4,5,3] => [1,7,3,6,5,4,2] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,2,6,1,5,3,4] => [1,7,4,2,3,6,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,2,6,1,5,4,3] => [1,7,3,6,4,2,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,2,6,3,1,4,5] => [1,7,5,2,3,6,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,2,6,3,1,5,4] => [1,7,4,3,6,5,2] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,2,6,3,4,1,5] => [1,7,5,4,3,6,2] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,2,6,3,4,5,1] => [1,7,2,3,6,5,4] => [.,[[.,[.,[[[.,.],.],.]]],.]] => [[[[[],[],[]]],[]]] => 4
[7,2,6,3,5,1,4] => [1,7,4,3,6,2,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,2,6,3,5,4,1] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,2,6,4,1,3,5] => [1,7,5,2,3,6,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,2,6,4,1,5,3] => [1,7,3,6,5,2,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,2,6,4,3,1,5] => [1,7,5,3,6,2,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,2,6,4,3,5,1] => [1,7,2,3,6,5,4] => [.,[[.,[.,[[[.,.],.],.]]],.]] => [[[[[],[],[]]],[]]] => 4
[7,2,6,4,5,1,3] => [1,7,3,6,2,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,2,6,4,5,3,1] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,2,6,5,1,3,4] => [1,7,4,5,2,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,2,6,5,1,4,3] => [1,7,3,6,4,5,2] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,2,6,5,3,1,4] => [1,7,4,5,3,6,2] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,2,6,5,3,4,1] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,2,6,5,4,1,3] => [1,7,3,6,2,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,2,6,5,4,3,1] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,3,1,2,4,5,6] => [1,7,6,5,4,2,3] => [.,[[[[[.,[.,.]],.],.],.],.]] => [[[[]],[],[],[],[]]] => 5
[7,3,1,2,4,6,5] => [1,7,5,4,2,3,6] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,3,1,2,5,4,6] => [1,7,6,4,2,3,5] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,3,1,2,5,6,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,1,2,6,4,5] => [1,7,5,6,4,2,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,3,1,2,6,5,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,1,4,2,5,6] => [1,7,6,5,2,3,4] => [.,[[[[.,[.,[.,.]]],.],.],.]] => [[[[[]]],[],[],[]]] => 4
[7,3,1,4,2,6,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,1,4,5,2,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,3,1,4,5,6,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,1,4,6,2,5] => [1,7,5,6,2,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,1,4,6,5,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,1,5,2,4,6] => [1,7,6,4,5,2,3] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,3,1,5,2,6,4] => [1,7,4,5,2,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,1,5,4,2,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,3,1,5,4,6,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,1,5,6,2,4] => [1,7,4,5,6,2,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,1,5,6,4,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,1,6,2,4,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,1,6,2,5,4] => [1,7,4,6,5,2,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,1,6,4,2,5] => [1,7,5,4,6,2,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,3,1,6,4,5,2] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,3,1,6,5,2,4] => [1,7,4,6,2,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,1,6,5,4,2] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,3,2,1,4,5,6] => [1,7,6,5,4,2,3] => [.,[[[[[.,[.,.]],.],.],.],.]] => [[[[]],[],[],[],[]]] => 5
[7,3,2,1,4,6,5] => [1,7,5,4,2,3,6] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,3,2,1,5,4,6] => [1,7,6,4,2,3,5] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,3,2,1,5,6,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,2,1,6,4,5] => [1,7,5,6,4,2,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,3,2,1,6,5,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,2,4,1,5,6] => [1,7,6,5,2,3,4] => [.,[[[[.,[.,[.,.]]],.],.],.]] => [[[[[]]],[],[],[]]] => 4
[7,3,2,4,1,6,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,2,4,5,1,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,3,2,4,5,6,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,2,4,6,1,5] => [1,7,5,6,2,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,2,4,6,5,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,2,5,1,4,6] => [1,7,6,4,5,2,3] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,3,2,5,1,6,4] => [1,7,4,5,2,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,2,5,4,1,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,3,2,5,4,6,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,2,5,6,1,4] => [1,7,4,5,6,2,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,2,5,6,4,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,2,6,1,4,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,2,6,1,5,4] => [1,7,4,6,5,2,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,2,6,4,1,5] => [1,7,5,4,6,2,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,3,2,6,4,5,1] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,3,2,6,5,1,4] => [1,7,4,6,2,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,2,6,5,4,1] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,3,4,1,2,5,6] => [1,7,6,5,2,3,4] => [.,[[[[.,[.,[.,.]]],.],.],.]] => [[[[[]]],[],[],[]]] => 4
[7,3,4,1,2,6,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,4,1,5,2,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,3,4,1,5,6,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,4,1,6,2,5] => [1,7,5,6,2,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,4,1,6,5,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,4,2,1,5,6] => [1,7,6,5,2,3,4] => [.,[[[[.,[.,[.,.]]],.],.],.]] => [[[[[]]],[],[],[]]] => 4
[7,3,4,2,1,6,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,4,2,5,1,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,3,4,2,5,6,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,4,2,6,1,5] => [1,7,5,6,2,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,4,2,6,5,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,4,5,1,2,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,3,4,5,1,6,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,4,5,2,1,6] => [1,7,6,2,3,4,5] => [.,[[[.,[.,[.,[.,.]]]],.],.]] => [[[[[[]]]],[],[]]] => 3
[7,3,4,5,2,6,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,4,5,6,1,2] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,4,5,6,2,1] => [1,7,2,3,4,5,6] => [.,[[.,[.,[.,[.,[.,.]]]]],.]] => [[[[[[[]]]]],[]]] => 2
[7,3,4,6,1,2,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,4,6,1,5,2] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,3,4,6,2,1,5] => [1,7,5,2,3,4,6] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,4,6,2,5,1] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,3,4,6,5,1,2] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,3,4,6,5,2,1] => [1,7,2,3,4,6,5] => [.,[[.,[.,[.,[[.,.],.]]]],.]] => [[[[[[],[]]]],[]]] => 3
[7,3,5,1,2,4,6] => [1,7,6,4,2,3,5] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,3,5,1,2,6,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,5,1,4,2,6] => [1,7,6,2,3,5,4] => [.,[[[.,[.,[[.,.],.]]],.],.]] => [[[[[],[]]],[],[]]] => 4
[7,3,5,1,4,6,2] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,1,6,2,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,5,1,6,4,2] => [1,7,2,3,5,6,4] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,2,1,4,6] => [1,7,6,4,2,3,5] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,3,5,2,1,6,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,5,2,4,1,6] => [1,7,6,2,3,5,4] => [.,[[[.,[.,[[.,.],.]]],.],.]] => [[[[[],[]]],[],[]]] => 4
[7,3,5,2,4,6,1] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,2,6,1,4] => [1,7,4,2,3,5,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,5,2,6,4,1] => [1,7,2,3,5,6,4] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,4,1,2,6] => [1,7,6,2,3,5,4] => [.,[[[.,[.,[[.,.],.]]],.],.]] => [[[[[],[]]],[],[]]] => 4
[7,3,5,4,1,6,2] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,4,2,1,6] => [1,7,6,2,3,5,4] => [.,[[[.,[.,[[.,.],.]]],.],.]] => [[[[[],[]]],[],[]]] => 4
[7,3,5,4,2,6,1] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,4,6,1,2] => [1,7,2,3,5,6,4] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,4,6,2,1] => [1,7,2,3,5,6,4] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,6,1,2,4] => [1,7,4,6,2,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,5,6,1,4,2] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,6,2,1,4] => [1,7,4,6,2,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,5,6,2,4,1] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,6,4,1,2] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,5,6,4,2,1] => [1,7,2,3,5,4,6] => [.,[[.,[.,[[.,.],[.,.]]]],.]] => [[[[[],[[]]]],[]]] => 3
[7,3,6,1,2,4,5] => [1,7,5,2,3,6,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,6,1,2,5,4] => [1,7,4,2,3,6,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,6,1,4,2,5] => [1,7,5,4,2,3,6] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,3,6,1,4,5,2] => [1,7,2,3,6,5,4] => [.,[[.,[.,[[[.,.],.],.]]],.]] => [[[[[],[],[]]],[]]] => 4
[7,3,6,1,5,2,4] => [1,7,4,2,3,6,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,6,1,5,4,2] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,3,6,2,1,4,5] => [1,7,5,2,3,6,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,6,2,1,5,4] => [1,7,4,2,3,6,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,6,2,4,1,5] => [1,7,5,4,2,3,6] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,3,6,2,4,5,1] => [1,7,2,3,6,5,4] => [.,[[.,[.,[[[.,.],.],.]]],.]] => [[[[[],[],[]]],[]]] => 4
[7,3,6,2,5,1,4] => [1,7,4,2,3,6,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,3,6,2,5,4,1] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,3,6,4,1,2,5] => [1,7,5,2,3,6,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,6,4,1,5,2] => [1,7,2,3,6,5,4] => [.,[[.,[.,[[[.,.],.],.]]],.]] => [[[[[],[],[]]],[]]] => 4
[7,3,6,4,2,1,5] => [1,7,5,2,3,6,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,3,6,4,2,5,1] => [1,7,2,3,6,5,4] => [.,[[.,[.,[[[.,.],.],.]]],.]] => [[[[[],[],[]]],[]]] => 4
[7,3,6,4,5,1,2] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,3,6,4,5,2,1] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,3,6,5,1,2,4] => [1,7,4,5,2,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,6,5,1,4,2] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,3,6,5,2,1,4] => [1,7,4,5,2,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,3,6,5,2,4,1] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,3,6,5,4,1,2] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,3,6,5,4,2,1] => [1,7,2,3,6,4,5] => [.,[[.,[.,[[.,[.,.]],.]]],.]] => [[[[[[]],[]]],[]]] => 3
[7,4,1,2,3,5,6] => [1,7,6,5,3,2,4] => [.,[[[[[.,.],[.,.]],.],.],.]] => [[[],[[]],[],[],[]]] => 5
[7,4,1,2,3,6,5] => [1,7,5,3,2,4,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,4,1,2,5,3,6] => [1,7,6,3,2,4,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,4,1,2,5,6,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,4,1,2,6,3,5] => [1,7,5,6,3,2,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,4,1,2,6,5,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,4,1,3,2,5,6] => [1,7,6,5,2,4,3] => [.,[[[[.,[[.,.],.]],.],.],.]] => [[[[],[]],[],[],[]]] => 5
[7,4,1,3,2,6,5] => [1,7,5,2,4,3,6] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,1,3,5,2,6] => [1,7,6,2,4,3,5] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,1,3,5,6,2] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,1,3,6,2,5] => [1,7,5,6,2,4,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,1,3,6,5,2] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,1,5,2,3,6] => [1,7,6,3,2,4,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,4,1,5,2,6,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,4,1,5,3,2,6] => [1,7,6,2,4,5,3] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,1,5,3,6,2] => [1,7,2,4,5,3,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,1,5,6,2,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,4,1,5,6,3,2] => [1,7,2,4,5,6,3] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,1,6,2,3,5] => [1,7,5,2,4,6,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,1,6,2,5,3] => [1,7,3,2,4,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,4,1,6,3,2,5] => [1,7,5,3,2,4,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,4,1,6,3,5,2] => [1,7,2,4,6,5,3] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,1,6,5,2,3] => [1,7,3,2,4,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,4,1,6,5,3,2] => [1,7,2,4,6,3,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,2,1,3,5,6] => [1,7,6,5,3,2,4] => [.,[[[[[.,.],[.,.]],.],.],.]] => [[[],[[]],[],[],[]]] => 5
[7,4,2,1,3,6,5] => [1,7,5,3,2,4,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,4,2,1,5,3,6] => [1,7,6,3,2,4,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,4,2,1,5,6,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,4,2,1,6,3,5] => [1,7,5,6,3,2,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,4,2,1,6,5,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,4,2,3,1,5,6] => [1,7,6,5,2,4,3] => [.,[[[[.,[[.,.],.]],.],.],.]] => [[[[],[]],[],[],[]]] => 5
[7,4,2,3,1,6,5] => [1,7,5,2,4,3,6] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,2,3,5,1,6] => [1,7,6,2,4,3,5] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,2,3,5,6,1] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,2,3,6,1,5] => [1,7,5,6,2,4,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,2,3,6,5,1] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,2,5,1,3,6] => [1,7,6,3,2,4,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,4,2,5,1,6,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,4,2,5,3,1,6] => [1,7,6,2,4,5,3] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,2,5,3,6,1] => [1,7,2,4,5,3,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,2,5,6,1,3] => [1,7,3,2,4,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,4,2,5,6,3,1] => [1,7,2,4,5,6,3] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,2,6,1,3,5] => [1,7,5,2,4,6,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,2,6,1,5,3] => [1,7,3,2,4,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,4,2,6,3,1,5] => [1,7,5,3,2,4,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,4,2,6,3,5,1] => [1,7,2,4,6,5,3] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,2,6,5,1,3] => [1,7,3,2,4,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,4,2,6,5,3,1] => [1,7,2,4,6,3,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,3,1,2,5,6] => [1,7,6,5,2,4,3] => [.,[[[[.,[[.,.],.]],.],.],.]] => [[[[],[]],[],[],[]]] => 5
[7,4,3,1,2,6,5] => [1,7,5,2,4,3,6] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,3,1,5,2,6] => [1,7,6,2,4,3,5] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,3,1,5,6,2] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,3,1,6,2,5] => [1,7,5,6,2,4,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,3,1,6,5,2] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,3,2,1,5,6] => [1,7,6,5,2,4,3] => [.,[[[[.,[[.,.],.]],.],.],.]] => [[[[],[]],[],[],[]]] => 5
[7,4,3,2,1,6,5] => [1,7,5,2,4,3,6] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,3,2,5,1,6] => [1,7,6,2,4,3,5] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,3,2,5,6,1] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,3,2,6,1,5] => [1,7,5,6,2,4,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,3,2,6,5,1] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,3,5,1,2,6] => [1,7,6,2,4,5,3] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,3,5,1,6,2] => [1,7,2,4,5,3,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,3,5,2,1,6] => [1,7,6,2,4,5,3] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,3,5,2,6,1] => [1,7,2,4,5,3,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,3,5,6,1,2] => [1,7,2,4,5,6,3] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,3,5,6,2,1] => [1,7,2,4,5,6,3] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,3,6,1,2,5] => [1,7,5,2,4,6,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,3,6,1,5,2] => [1,7,2,4,6,5,3] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,3,6,2,1,5] => [1,7,5,2,4,6,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,3,6,2,5,1] => [1,7,2,4,6,5,3] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,3,6,5,1,2] => [1,7,2,4,6,3,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,3,6,5,2,1] => [1,7,2,4,6,3,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,5,1,2,3,6] => [1,7,6,3,5,2,4] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,4,5,1,2,6,3] => [1,7,3,5,2,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,4,5,1,3,2,6] => [1,7,6,2,4,3,5] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,5,1,3,6,2] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,5,1,6,2,3] => [1,7,3,5,6,2,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,4,5,1,6,3,2] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,5,2,1,3,6] => [1,7,6,3,5,2,4] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,4,5,2,1,6,3] => [1,7,3,5,2,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,4,5,2,3,1,6] => [1,7,6,2,4,3,5] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,5,2,3,6,1] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,5,2,6,1,3] => [1,7,3,5,6,2,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,4,5,2,6,3,1] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,5,3,1,2,6] => [1,7,6,2,4,3,5] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,5,3,1,6,2] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,5,3,2,1,6] => [1,7,6,2,4,3,5] => [.,[[[.,[[.,.],[.,.]]],.],.]] => [[[[],[[]]],[],[]]] => 4
[7,4,5,3,2,6,1] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,5,3,6,1,2] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,5,3,6,2,1] => [1,7,2,4,3,5,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,5,6,1,2,3] => [1,7,3,5,2,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,4,5,6,1,3,2] => [1,7,2,4,6,3,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,5,6,2,1,3] => [1,7,3,5,2,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,4,5,6,2,3,1] => [1,7,2,4,6,3,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,5,6,3,1,2] => [1,7,2,4,6,3,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,5,6,3,2,1] => [1,7,2,4,6,3,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,1,2,3,5] => [1,7,5,2,4,3,6] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,6,1,2,5,3] => [1,7,3,6,5,2,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,4,6,1,3,2,5] => [1,7,5,3,6,2,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,4,6,1,3,5,2] => [1,7,2,4,3,6,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,1,5,2,3] => [1,7,3,6,2,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,4,6,1,5,3,2] => [1,7,2,4,3,6,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,2,1,3,5] => [1,7,5,2,4,3,6] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,6,2,1,5,3] => [1,7,3,6,5,2,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,4,6,2,3,1,5] => [1,7,5,3,6,2,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,4,6,2,3,5,1] => [1,7,2,4,3,6,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,2,5,1,3] => [1,7,3,6,2,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,4,6,2,5,3,1] => [1,7,2,4,3,6,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,3,1,2,5] => [1,7,5,2,4,3,6] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,6,3,1,5,2] => [1,7,2,4,3,6,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,3,2,1,5] => [1,7,5,2,4,3,6] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,4,6,3,2,5,1] => [1,7,2,4,3,6,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,3,5,1,2] => [1,7,2,4,3,6,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,3,5,2,1] => [1,7,2,4,3,6,5] => [.,[[.,[[.,.],[[.,.],.]]],.]] => [[[[],[[],[]]],[]]] => 4
[7,4,6,5,1,2,3] => [1,7,3,6,2,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,4,6,5,1,3,2] => [1,7,2,4,5,3,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,6,5,2,1,3] => [1,7,3,6,2,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,4,6,5,2,3,1] => [1,7,2,4,5,3,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,6,5,3,1,2] => [1,7,2,4,5,3,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,4,6,5,3,2,1] => [1,7,2,4,5,3,6] => [.,[[.,[[.,.],[.,[.,.]]]],.]] => [[[[],[[[]]]],[]]] => 3
[7,5,1,2,3,4,6] => [1,7,6,4,2,5,3] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,5,1,2,3,6,4] => [1,7,4,2,5,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,1,2,4,3,6] => [1,7,6,3,2,5,4] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,5,1,2,4,6,3] => [1,7,3,2,5,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,1,2,6,3,4] => [1,7,4,2,5,6,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,1,2,6,4,3] => [1,7,3,2,5,6,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,1,3,2,4,6] => [1,7,6,4,3,2,5] => [.,[[[[[.,.],.],[.,.]],.],.]] => [[[],[],[[]],[],[]]] => 5
[7,5,1,3,2,6,4] => [1,7,4,3,2,5,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,5,1,3,4,2,6] => [1,7,6,2,5,4,3] => [.,[[[.,[[[.,.],.],.]],.],.]] => [[[[],[],[]],[],[]]] => 5
[7,5,1,3,4,6,2] => [1,7,2,5,4,3,6] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,1,3,6,2,4] => [1,7,4,3,2,5,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,5,1,3,6,4,2] => [1,7,2,5,6,4,3] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,1,4,2,3,6] => [1,7,6,3,2,5,4] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,5,1,4,2,6,3] => [1,7,3,2,5,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,1,4,3,2,6] => [1,7,6,2,5,3,4] => [.,[[[.,[[.,[.,.]],.]],.],.]] => [[[[[]],[]],[],[]]] => 4
[7,5,1,4,3,6,2] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,1,4,6,2,3] => [1,7,3,2,5,6,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,1,4,6,3,2] => [1,7,2,5,6,3,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,1,6,2,3,4] => [1,7,4,6,3,2,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,5,1,6,2,4,3] => [1,7,3,2,5,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,1,6,3,2,4] => [1,7,4,6,2,5,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,5,1,6,3,4,2] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,1,6,4,2,3] => [1,7,3,2,5,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,1,6,4,3,2] => [1,7,2,5,4,6,3] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,2,1,3,4,6] => [1,7,6,4,2,5,3] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,5,2,1,3,6,4] => [1,7,4,2,5,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,2,1,4,3,6] => [1,7,6,3,2,5,4] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,5,2,1,4,6,3] => [1,7,3,2,5,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,2,1,6,3,4] => [1,7,4,2,5,6,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,2,1,6,4,3] => [1,7,3,2,5,6,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,2,3,1,4,6] => [1,7,6,4,3,2,5] => [.,[[[[[.,.],.],[.,.]],.],.]] => [[[],[],[[]],[],[]]] => 5
[7,5,2,3,1,6,4] => [1,7,4,3,2,5,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,5,2,3,4,1,6] => [1,7,6,2,5,4,3] => [.,[[[.,[[[.,.],.],.]],.],.]] => [[[[],[],[]],[],[]]] => 5
[7,5,2,3,4,6,1] => [1,7,2,5,4,3,6] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,2,3,6,1,4] => [1,7,4,3,2,5,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,5,2,3,6,4,1] => [1,7,2,5,6,4,3] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,2,4,1,3,6] => [1,7,6,3,2,5,4] => [.,[[[[.,.],[[.,.],.]],.],.]] => [[[],[[],[]],[],[]]] => 5
[7,5,2,4,1,6,3] => [1,7,3,2,5,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,2,4,3,1,6] => [1,7,6,2,5,3,4] => [.,[[[.,[[.,[.,.]],.]],.],.]] => [[[[[]],[]],[],[]]] => 4
[7,5,2,4,3,6,1] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,2,4,6,1,3] => [1,7,3,2,5,6,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,2,4,6,3,1] => [1,7,2,5,6,3,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,2,6,1,3,4] => [1,7,4,6,3,2,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,5,2,6,1,4,3] => [1,7,3,2,5,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,2,6,3,1,4] => [1,7,4,6,2,5,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,5,2,6,3,4,1] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,2,6,4,1,3] => [1,7,3,2,5,4,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,5,2,6,4,3,1] => [1,7,2,5,4,6,3] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,3,1,2,4,6] => [1,7,6,4,2,5,3] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,5,3,1,2,6,4] => [1,7,4,2,5,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,3,1,4,2,6] => [1,7,6,2,5,4,3] => [.,[[[.,[[[.,.],.],.]],.],.]] => [[[[],[],[]],[],[]]] => 5
[7,5,3,1,4,6,2] => [1,7,2,5,4,3,6] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,3,1,6,2,4] => [1,7,4,2,5,6,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,3,1,6,4,2] => [1,7,2,5,6,4,3] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,3,2,1,4,6] => [1,7,6,4,2,5,3] => [.,[[[[.,[.,.]],[.,.]],.],.]] => [[[[]],[[]],[],[]]] => 4
[7,5,3,2,1,6,4] => [1,7,4,2,5,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,3,2,4,1,6] => [1,7,6,2,5,4,3] => [.,[[[.,[[[.,.],.],.]],.],.]] => [[[[],[],[]],[],[]]] => 5
[7,5,3,2,4,6,1] => [1,7,2,5,4,3,6] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,3,2,6,1,4] => [1,7,4,2,5,6,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,3,2,6,4,1] => [1,7,2,5,6,4,3] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,3,4,1,2,6] => [1,7,6,2,5,3,4] => [.,[[[.,[[.,[.,.]],.]],.],.]] => [[[[[]],[]],[],[]]] => 4
[7,5,3,4,1,6,2] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,3,4,2,1,6] => [1,7,6,2,5,3,4] => [.,[[[.,[[.,[.,.]],.]],.],.]] => [[[[[]],[]],[],[]]] => 4
[7,5,3,4,2,6,1] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,3,4,6,1,2] => [1,7,2,5,6,3,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,3,4,6,2,1] => [1,7,2,5,6,3,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,3,6,1,2,4] => [1,7,4,6,2,5,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,5,3,6,1,4,2] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,3,6,2,1,4] => [1,7,4,6,2,5,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,5,3,6,2,4,1] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,3,6,4,1,2] => [1,7,2,5,4,6,3] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,3,6,4,2,1] => [1,7,2,5,4,6,3] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,4,1,2,3,6] => [1,7,6,3,4,2,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,5,4,1,2,6,3] => [1,7,3,4,2,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,5,4,1,3,2,6] => [1,7,6,2,5,3,4] => [.,[[[.,[[.,[.,.]],.]],.],.]] => [[[[[]],[]],[],[]]] => 4
[7,5,4,1,3,6,2] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,1,6,2,3] => [1,7,3,4,2,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,5,4,1,6,3,2] => [1,7,2,5,6,3,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,2,1,3,6] => [1,7,6,3,4,2,5] => [.,[[[[.,.],[.,[.,.]]],.],.]] => [[[],[[[]]],[],[]]] => 4
[7,5,4,2,1,6,3] => [1,7,3,4,2,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,5,4,2,3,1,6] => [1,7,6,2,5,3,4] => [.,[[[.,[[.,[.,.]],.]],.],.]] => [[[[[]],[]],[],[]]] => 4
[7,5,4,2,3,6,1] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,2,6,1,3] => [1,7,3,4,2,5,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,5,4,2,6,3,1] => [1,7,2,5,6,3,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,3,1,2,6] => [1,7,6,2,5,3,4] => [.,[[[.,[[.,[.,.]],.]],.],.]] => [[[[[]],[]],[],[]]] => 4
[7,5,4,3,1,6,2] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,3,2,1,6] => [1,7,6,2,5,3,4] => [.,[[[.,[[.,[.,.]],.]],.],.]] => [[[[[]],[]],[],[]]] => 4
[7,5,4,3,2,6,1] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,3,6,1,2] => [1,7,2,5,6,3,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,3,6,2,1] => [1,7,2,5,6,3,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,6,1,2,3] => [1,7,3,4,6,2,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,5,4,6,1,3,2] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,6,2,1,3] => [1,7,3,4,6,2,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,5,4,6,2,3,1] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,6,3,1,2] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,4,6,3,2,1] => [1,7,2,5,3,4,6] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,6,1,2,3,4] => [1,7,4,2,5,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,6,1,2,4,3] => [1,7,3,6,4,2,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,5,6,1,3,2,4] => [1,7,4,2,5,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,6,1,3,4,2] => [1,7,2,5,3,6,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,6,1,4,2,3] => [1,7,3,6,2,5,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,5,6,1,4,3,2] => [1,7,2,5,4,3,6] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,6,2,1,3,4] => [1,7,4,2,5,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,6,2,1,4,3] => [1,7,3,6,4,2,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,5,6,2,3,1,4] => [1,7,4,2,5,3,6] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,5,6,2,3,4,1] => [1,7,2,5,3,6,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,6,2,4,1,3] => [1,7,3,6,2,5,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,5,6,2,4,3,1] => [1,7,2,5,4,3,6] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,6,3,1,2,4] => [1,7,4,3,6,2,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,5,6,3,1,4,2] => [1,7,2,5,3,6,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,6,3,2,1,4] => [1,7,4,3,6,2,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,5,6,3,2,4,1] => [1,7,2,5,3,6,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,6,3,4,1,2] => [1,7,2,5,4,3,6] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,6,3,4,2,1] => [1,7,2,5,4,3,6] => [.,[[.,[[[.,.],.],[.,.]]],.]] => [[[[],[],[[]]],[]]] => 4
[7,5,6,4,1,2,3] => [1,7,3,6,2,5,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,5,6,4,1,3,2] => [1,7,2,5,3,6,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,6,4,2,1,3] => [1,7,3,6,2,5,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,5,6,4,2,3,1] => [1,7,2,5,3,6,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,6,4,3,1,2] => [1,7,2,5,3,6,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,5,6,4,3,2,1] => [1,7,2,5,3,6,4] => [.,[[.,[[.,[.,.]],[.,.]]],.]] => [[[[[]],[[]]],[]]] => 3
[7,6,1,2,3,4,5] => [1,7,5,3,2,6,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,6,1,2,3,5,4] => [1,7,4,2,6,5,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,1,2,4,3,5] => [1,7,5,4,2,6,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,6,1,2,4,5,3] => [1,7,3,2,6,5,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,6,1,2,5,3,4] => [1,7,4,2,6,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,1,2,5,4,3] => [1,7,3,2,6,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,6,1,3,2,4,5] => [1,7,5,2,6,4,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,6,1,3,2,5,4] => [1,7,4,3,2,6,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,6,1,3,4,2,5] => [1,7,5,4,3,2,6] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,6,1,3,4,5,2] => [1,7,2,6,5,4,3] => [.,[[.,[[[[.,.],.],.],.]],.]] => [[[[],[],[],[]],[]]] => 5
[7,6,1,3,5,2,4] => [1,7,4,3,2,6,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,6,1,3,5,4,2] => [1,7,2,6,4,3,5] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,1,4,2,3,5] => [1,7,5,2,6,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,6,1,4,2,5,3] => [1,7,3,2,6,5,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,6,1,4,3,2,5] => [1,7,5,3,2,6,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,6,1,4,3,5,2] => [1,7,2,6,5,3,4] => [.,[[.,[[[.,[.,.]],.],.]],.]] => [[[[[]],[],[]],[]]] => 4
[7,6,1,4,5,2,3] => [1,7,3,2,6,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,6,1,4,5,3,2] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,1,5,2,3,4] => [1,7,4,5,2,6,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,6,1,5,2,4,3] => [1,7,3,2,6,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,6,1,5,3,2,4] => [1,7,4,5,3,2,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,6,1,5,3,4,2] => [1,7,2,6,4,5,3] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,1,5,4,2,3] => [1,7,3,2,6,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,6,1,5,4,3,2] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,2,1,3,4,5] => [1,7,5,3,2,6,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,6,2,1,3,5,4] => [1,7,4,2,6,5,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,2,1,4,3,5] => [1,7,5,4,2,6,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,6,2,1,4,5,3] => [1,7,3,2,6,5,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,6,2,1,5,3,4] => [1,7,4,2,6,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,2,1,5,4,3] => [1,7,3,2,6,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,6,2,3,1,4,5] => [1,7,5,2,6,4,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,6,2,3,1,5,4] => [1,7,4,3,2,6,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,6,2,3,4,1,5] => [1,7,5,4,3,2,6] => [.,[[[[[.,.],.],.],[.,.]],.]] => [[[],[],[],[[]],[]]] => 5
[7,6,2,3,4,5,1] => [1,7,2,6,5,4,3] => [.,[[.,[[[[.,.],.],.],.]],.]] => [[[[],[],[],[]],[]]] => 5
[7,6,2,3,5,1,4] => [1,7,4,3,2,6,5] => [.,[[[[.,.],.],[[.,.],.]],.]] => [[[],[],[[],[]],[]]] => 5
[7,6,2,3,5,4,1] => [1,7,2,6,4,3,5] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,2,4,1,3,5] => [1,7,5,2,6,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,6,2,4,1,5,3] => [1,7,3,2,6,5,4] => [.,[[[.,.],[[[.,.],.],.]],.]] => [[[],[[],[],[]],[]]] => 5
[7,6,2,4,3,1,5] => [1,7,5,3,2,6,4] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,6,2,4,3,5,1] => [1,7,2,6,5,3,4] => [.,[[.,[[[.,[.,.]],.],.]],.]] => [[[[[]],[],[]],[]]] => 4
[7,6,2,4,5,1,3] => [1,7,3,2,6,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,6,2,4,5,3,1] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,2,5,1,3,4] => [1,7,4,5,2,6,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,6,2,5,1,4,3] => [1,7,3,2,6,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,6,2,5,3,1,4] => [1,7,4,5,3,2,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,6,2,5,3,4,1] => [1,7,2,6,4,5,3] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,2,5,4,1,3] => [1,7,3,2,6,4,5] => [.,[[[.,.],[[.,[.,.]],.]],.]] => [[[],[[[]],[]],[]]] => 4
[7,6,2,5,4,3,1] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,3,1,2,4,5] => [1,7,5,2,6,4,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,6,3,1,2,5,4] => [1,7,4,2,6,5,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,3,1,4,2,5] => [1,7,5,4,2,6,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,6,3,1,4,5,2] => [1,7,2,6,5,4,3] => [.,[[.,[[[[.,.],.],.],.]],.]] => [[[[],[],[],[]],[]]] => 5
[7,6,3,1,5,2,4] => [1,7,4,2,6,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,3,1,5,4,2] => [1,7,2,6,4,3,5] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,3,2,1,4,5] => [1,7,5,2,6,4,3] => [.,[[[.,[[.,.],.]],[.,.]],.]] => [[[[],[]],[[]],[]]] => 4
[7,6,3,2,1,5,4] => [1,7,4,2,6,5,3] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,3,2,4,1,5] => [1,7,5,4,2,6,3] => [.,[[[[.,[.,.]],.],[.,.]],.]] => [[[[]],[],[[]],[]]] => 4
[7,6,3,2,4,5,1] => [1,7,2,6,5,4,3] => [.,[[.,[[[[.,.],.],.],.]],.]] => [[[[],[],[],[]],[]]] => 5
[7,6,3,2,5,1,4] => [1,7,4,2,6,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,3,2,5,4,1] => [1,7,2,6,4,3,5] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,3,4,1,2,5] => [1,7,5,2,6,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,6,3,4,1,5,2] => [1,7,2,6,5,3,4] => [.,[[.,[[[.,[.,.]],.],.]],.]] => [[[[[]],[],[]],[]]] => 4
[7,6,3,4,2,1,5] => [1,7,5,2,6,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,6,3,4,2,5,1] => [1,7,2,6,5,3,4] => [.,[[.,[[[.,[.,.]],.],.]],.]] => [[[[[]],[],[]],[]]] => 4
[7,6,3,4,5,1,2] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,3,4,5,2,1] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,3,5,1,2,4] => [1,7,4,5,2,6,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,6,3,5,1,4,2] => [1,7,2,6,4,5,3] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,3,5,2,1,4] => [1,7,4,5,2,6,3] => [.,[[[.,[.,.]],[.,[.,.]]],.]] => [[[[]],[[[]]],[]]] => 3
[7,6,3,5,2,4,1] => [1,7,2,6,4,5,3] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,3,5,4,1,2] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,3,5,4,2,1] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,4,1,2,3,5] => [1,7,5,2,6,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,6,4,1,2,5,3] => [1,7,3,4,2,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,6,4,1,3,2,5] => [1,7,5,3,4,2,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,6,4,1,3,5,2] => [1,7,2,6,5,3,4] => [.,[[.,[[[.,[.,.]],.],.]],.]] => [[[[[]],[],[]],[]]] => 4
[7,6,4,1,5,2,3] => [1,7,3,4,2,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,6,4,1,5,3,2] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,4,2,1,3,5] => [1,7,5,2,6,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,6,4,2,1,5,3] => [1,7,3,4,2,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,6,4,2,3,1,5] => [1,7,5,3,4,2,6] => [.,[[[[.,.],[.,.]],[.,.]],.]] => [[[],[[]],[[]],[]]] => 4
[7,6,4,2,3,5,1] => [1,7,2,6,5,3,4] => [.,[[.,[[[.,[.,.]],.],.]],.]] => [[[[[]],[],[]],[]]] => 4
[7,6,4,2,5,1,3] => [1,7,3,4,2,6,5] => [.,[[[.,.],[.,[[.,.],.]]],.]] => [[[],[[[],[]]],[]]] => 4
[7,6,4,2,5,3,1] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,4,3,1,2,5] => [1,7,5,2,6,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,6,4,3,1,5,2] => [1,7,2,6,5,3,4] => [.,[[.,[[[.,[.,.]],.],.]],.]] => [[[[[]],[],[]],[]]] => 4
[7,6,4,3,2,1,5] => [1,7,5,2,6,3,4] => [.,[[[.,[.,[.,.]]],[.,.]],.]] => [[[[[]]],[[]],[]]] => 3
[7,6,4,3,2,5,1] => [1,7,2,6,5,3,4] => [.,[[.,[[[.,[.,.]],.],.]],.]] => [[[[[]],[],[]],[]]] => 4
[7,6,4,3,5,1,2] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,4,3,5,2,1] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,4,5,1,2,3] => [1,7,3,4,5,2,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,6,4,5,1,3,2] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,4,5,2,1,3] => [1,7,3,4,5,2,6] => [.,[[[.,.],[.,[.,[.,.]]]],.]] => [[[],[[[[]]]],[]]] => 3
[7,6,4,5,2,3,1] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,4,5,3,1,2] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,4,5,3,2,1] => [1,7,2,6,3,4,5] => [.,[[.,[[.,[.,[.,.]]],.]],.]] => [[[[[[]]],[]],[]]] => 3
[7,6,5,1,2,3,4] => [1,7,4,2,6,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,5,1,2,4,3] => [1,7,3,5,2,6,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,6,5,1,3,2,4] => [1,7,4,2,6,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,5,1,3,4,2] => [1,7,2,6,4,3,5] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,5,1,4,2,3] => [1,7,3,5,4,2,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,6,5,1,4,3,2] => [1,7,2,6,3,5,4] => [.,[[.,[[.,[[.,.],.]],.]],.]] => [[[[[],[]],[]],[]]] => 4
[7,6,5,2,1,3,4] => [1,7,4,2,6,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,5,2,1,4,3] => [1,7,3,5,2,6,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,6,5,2,3,1,4] => [1,7,4,2,6,3,5] => [.,[[[.,[.,.]],[[.,.],.]],.]] => [[[[]],[[],[]],[]]] => 4
[7,6,5,2,3,4,1] => [1,7,2,6,4,3,5] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,5,2,4,1,3] => [1,7,3,5,4,2,6] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,6,5,2,4,3,1] => [1,7,2,6,3,5,4] => [.,[[.,[[.,[[.,.],.]],.]],.]] => [[[[[],[]],[]],[]]] => 4
[7,6,5,3,1,2,4] => [1,7,4,3,5,2,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,6,5,3,1,4,2] => [1,7,2,6,4,3,5] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,5,3,2,1,4] => [1,7,4,3,5,2,6] => [.,[[[[.,.],.],[.,[.,.]]],.]] => [[[],[],[[[]]],[]]] => 4
[7,6,5,3,2,4,1] => [1,7,2,6,4,3,5] => [.,[[.,[[[.,.],[.,.]],.]],.]] => [[[[],[[]],[]],[]]] => 4
[7,6,5,3,4,1,2] => [1,7,2,6,3,5,4] => [.,[[.,[[.,[[.,.],.]],.]],.]] => [[[[[],[]],[]],[]]] => 4
[7,6,5,3,4,2,1] => [1,7,2,6,3,5,4] => [.,[[.,[[.,[[.,.],.]],.]],.]] => [[[[[],[]],[]],[]]] => 4
[7,6,5,4,1,2,3] => [1,7,3,5,2,6,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,6,5,4,1,3,2] => [1,7,2,6,3,5,4] => [.,[[.,[[.,[[.,.],.]],.]],.]] => [[[[[],[]],[]],[]]] => 4
[7,6,5,4,2,1,3] => [1,7,3,5,2,6,4] => [.,[[[.,.],[[.,.],[.,.]]],.]] => [[[],[[],[[]]],[]]] => 4
[7,6,5,4,2,3,1] => [1,7,2,6,3,5,4] => [.,[[.,[[.,[[.,.],.]],.]],.]] => [[[[[],[]],[]],[]]] => 4
[7,6,5,4,3,1,2] => [1,7,2,6,3,5,4] => [.,[[.,[[.,[[.,.],.]],.]],.]] => [[[[[],[]],[]],[]]] => 4
[7,6,5,4,3,2,1] => [1,7,2,6,3,5,4] => [.,[[.,[[.,[[.,.],.]],.]],.]] => [[[[[],[]],[]],[]]] => 4
[8,4,3,2,1,5,6,7] => [1,8,7,6,5,2,4,3] => [.,[[[[[.,[[.,.],.]],.],.],.],.]] => [[[[],[]],[],[],[],[]]] => 6
[8,3,4,2,1,5,6,7] => [1,8,7,6,5,2,3,4] => [.,[[[[[.,[.,[.,.]]],.],.],.],.]] => [[[[[]]],[],[],[],[]]] => 5
[8,4,2,3,1,5,6,7] => [1,8,7,6,5,2,4,3] => [.,[[[[[.,[[.,.],.]],.],.],.],.]] => [[[[],[]],[],[],[],[]]] => 6
[8,2,3,4,1,5,6,7] => [1,8,7,6,5,2,3,4] => [.,[[[[[.,[.,[.,.]]],.],.],.],.]] => [[[[[]]],[],[],[],[]]] => 5
[8,3,4,1,2,5,6,7] => [1,8,7,6,5,2,3,4] => [.,[[[[[.,[.,[.,.]]],.],.],.],.]] => [[[[[]]],[],[],[],[]]] => 5
[8,3,2,1,4,5,6,7] => [1,8,7,6,5,4,2,3] => [.,[[[[[[.,[.,.]],.],.],.],.],.]] => [[[[]],[],[],[],[],[]]] => 6
[8,2,3,1,4,5,6,7] => [1,8,7,6,5,4,2,3] => [.,[[[[[[.,[.,.]],.],.],.],.],.]] => [[[[]],[],[],[],[],[]]] => 6
[8,3,1,2,4,5,6,7] => [1,8,7,6,5,4,2,3] => [.,[[[[[[.,[.,.]],.],.],.],.],.]] => [[[[]],[],[],[],[],[]]] => 6
[8,2,1,3,4,5,6,7] => [1,8,7,6,5,4,3,2] => [.,[[[[[[[.,.],.],.],.],.],.],.]] => [[[],[],[],[],[],[],[]]] => 7
[8,1,2,3,4,5,6,7] => [1,8,7,6,5,4,3,2] => [.,[[[[[[[.,.],.],.],.],.],.],.]] => [[[],[],[],[],[],[],[]]] => 7
[9,1,2,3,4,5,6,7,8] => [1,9,8,7,6,5,4,3,2] => [.,[[[[[[[[.,.],.],.],.],.],.],.],.]] => [[[],[],[],[],[],[],[],[]]] => 8
[9,3,1,2,4,5,6,7,8] => [1,9,8,7,6,5,4,2,3] => [.,[[[[[[[.,[.,.]],.],.],.],.],.],.]] => [[[[]],[],[],[],[],[],[]]] => 7
[8,1,4,3,2,5,6,7] => [1,8,7,6,5,2,3,4] => [.,[[[[[.,[.,[.,.]]],.],.],.],.]] => [[[[[]]],[],[],[],[]]] => 5
[10,1,2,3,4,5,6,7,8,9] => [1,10,9,8,7,6,5,4,3,2] => [.,[[[[[[[[[.,.],.],.],.],.],.],.],.],.]] => [[[],[],[],[],[],[],[],[],[]]] => 9
[9,2,1,3,4,5,6,7,8] => [1,9,8,7,6,5,4,3,2] => [.,[[[[[[[[.,.],.],.],.],.],.],.],.]] => [[[],[],[],[],[],[],[],[]]] => 8
[10,2,1,3,4,5,6,7,8,9] => [1,10,9,8,7,6,5,4,3,2] => [.,[[[[[[[[[.,.],.],.],.],.],.],.],.],.]] => [[[],[],[],[],[],[],[],[],[]]] => 9
[9,2,3,1,4,5,6,7,8] => [1,9,8,7,6,5,4,2,3] => [.,[[[[[[[.,[.,.]],.],.],.],.],.],.]] => [[[[]],[],[],[],[],[],[]]] => 7
[8,1,3,2,4,5,6,7] => [1,8,7,6,5,4,2,3] => [.,[[[[[[.,[.,.]],.],.],.],.],.]] => [[[[]],[],[],[],[],[]]] => 6
[9,1,3,2,4,5,6,7,8] => [1,9,8,7,6,5,4,2,3] => [.,[[[[[[[.,[.,.]],.],.],.],.],.],.]] => [[[[]],[],[],[],[],[],[]]] => 7
[8,4,1,3,2,5,6,7] => [1,8,7,6,5,2,4,3] => [.,[[[[[.,[[.,.],.]],.],.],.],.]] => [[[[],[]],[],[],[],[]]] => 6
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Generating function
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Search the Online Encyclopedia of Integer
Sequences for the coefficients of a few of the
first generating functions, in the case at hand:
4,2 8,14,2 16,66,36,2 32,262,342,82,2 64,946,2416,1436,176,2
$F_{1} = q$
$F_{2} = 2\ q$
$F_{3} = 4\ q + 2\ q^{2}$
$F_{4} = 8\ q + 14\ q^{2} + 2\ q^{3}$
$F_{5} = 16\ q + 66\ q^{2} + 36\ q^{3} + 2\ q^{4}$
$F_{6} = 32\ q + 262\ q^{2} + 342\ q^{3} + 82\ q^{4} + 2\ q^{5}$
$F_{7} = 64\ q + 946\ q^{2} + 2416\ q^{3} + 1436\ q^{4} + 176\ q^{5} + 2\ q^{6}$
Description
The number of leaves of an ordered tree.
This is the number of nodes which do not have any children.
This is the number of nodes which do not have any children.
Map
binary search tree: left to right
Description
Return the shape of the binary search tree of the permutation as a non labelled binary tree.
Map
cycle-as-one-line notation
Description
Return the permutation obtained by concatenating the cycles of a permutation, each written with minimal element first, sorted by minimal element.
Map
to ordered tree: left child = left brother
Description
Return an ordered tree of size $n+1$ by the following recursive rule:
- if $x$ is the left child of $y$, $x$ becomes the left brother of $y$,
- if $x$ is the right child of $y$, $x$ becomes the last child of $y$.
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