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* Copyright (C) 2019 The FindStatCrew <info@findstat.org> *
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-----------------------------------------------------------------------------
Statistic identifier: St000523
-----------------------------------------------------------------------------
Collection: Ordered trees
-----------------------------------------------------------------------------
Description: The number of 2-protected nodes of a rooted tree.
This is the number of nodes with minimal distance two to a leaf. The number of trees with no 2-protected nodes is [[oeis:A143363]].
-----------------------------------------------------------------------------
References: [1] Copenhaver, K. $k$-protected vertices in unlabeled rooted plane trees [[arXiv:1606.00083]]
-----------------------------------------------------------------------------
Code:
def protection_aux(T, k):
"""Return the number of nodes whose minimal distance to a leaf is k
and the minimal distance of the root to a leaf.
"""
children = [protection_aux(t, k) for t in T]
if len(children) == 0:
if k == 0:
return (1, 0)
else:
return (0, 0)
kids = sum(num for num, _ in children)
root = 1 + min(p for _, p in children)
if root == k:
return (1 + kids, root)
else:
return (kids, root)
def statistic(T):
"""Return the number of nodes whose minimal distance to a leaf is k"""
return protection_aux(T, 2)[0]
-----------------------------------------------------------------------------
Statistic values:
[[]] => 0
[[],[]] => 0
[[[]]] => 1
[[],[],[]] => 0
[[],[[]]] => 0
[[[]],[]] => 0
[[[],[]]] => 1
[[[[]]]] => 1
[[],[],[],[]] => 0
[[],[],[[]]] => 0
[[],[[]],[]] => 0
[[],[[],[]]] => 0
[[],[[[]]]] => 1
[[[]],[],[]] => 0
[[[]],[[]]] => 1
[[[],[]],[]] => 0
[[[[]]],[]] => 1
[[[],[],[]]] => 1
[[[],[[]]]] => 1
[[[[]],[]]] => 1
[[[[],[]]]] => 1
[[[[[]]]]] => 1
[[],[],[],[],[]] => 0
[[],[],[],[[]]] => 0
[[],[],[[]],[]] => 0
[[],[],[[],[]]] => 0
[[],[],[[[]]]] => 1
[[],[[]],[],[]] => 0
[[],[[]],[[]]] => 0
[[],[[],[]],[]] => 0
[[],[[[]]],[]] => 1
[[],[[],[],[]]] => 0
[[],[[],[[]]]] => 0
[[],[[[]],[]]] => 0
[[],[[[],[]]]] => 1
[[],[[[[]]]]] => 1
[[[]],[],[],[]] => 0
[[[]],[],[[]]] => 0
[[[]],[[]],[]] => 0
[[[]],[[],[]]] => 1
[[[]],[[[]]]] => 2
[[[],[]],[],[]] => 0
[[[[]]],[],[]] => 1
[[[],[]],[[]]] => 1
[[[[]]],[[]]] => 2
[[[],[],[]],[]] => 0
[[[],[[]]],[]] => 0
[[[[]],[]],[]] => 0
[[[[],[]]],[]] => 1
[[[[[]]]],[]] => 1
[[[],[],[],[]]] => 1
[[[],[],[[]]]] => 1
[[[],[[]],[]]] => 1
[[[],[[],[]]]] => 1
[[[],[[[]]]]] => 2
[[[[]],[],[]]] => 1
[[[[]],[[]]]] => 1
[[[[],[]],[]]] => 1
[[[[[]]],[]]] => 2
[[[[],[],[]]]] => 1
[[[[],[[]]]]] => 1
[[[[[]],[]]]] => 1
[[[[[],[]]]]] => 1
[[[[[[]]]]]] => 1
[[],[],[],[],[],[]] => 0
[[],[],[],[],[[]]] => 0
[[],[],[],[[]],[]] => 0
[[],[],[],[[],[]]] => 0
[[],[],[],[[[]]]] => 1
[[],[],[[]],[],[]] => 0
[[],[],[[]],[[]]] => 0
[[],[],[[],[]],[]] => 0
[[],[],[[[]]],[]] => 1
[[],[],[[],[],[]]] => 0
[[],[],[[],[[]]]] => 0
[[],[],[[[]],[]]] => 0
[[],[],[[[],[]]]] => 1
[[],[],[[[[]]]]] => 1
[[],[[]],[],[],[]] => 0
[[],[[]],[],[[]]] => 0
[[],[[]],[[]],[]] => 0
[[],[[]],[[],[]]] => 0
[[],[[]],[[[]]]] => 1
[[],[[],[]],[],[]] => 0
[[],[[[]]],[],[]] => 1
[[],[[],[]],[[]]] => 0
[[],[[[]]],[[]]] => 1
[[],[[],[],[]],[]] => 0
[[],[[],[[]]],[]] => 0
[[],[[[]],[]],[]] => 0
[[],[[[],[]]],[]] => 1
[[],[[[[]]]],[]] => 1
[[],[[],[],[],[]]] => 0
[[],[[],[],[[]]]] => 0
[[],[[],[[]],[]]] => 0
[[],[[],[[],[]]]] => 0
[[],[[],[[[]]]]] => 1
[[],[[[]],[],[]]] => 0
[[],[[[]],[[]]]] => 1
[[],[[[],[]],[]]] => 0
[[],[[[[]]],[]]] => 1
[[],[[[],[],[]]]] => 1
[[],[[[],[[]]]]] => 1
[[],[[[[]],[]]]] => 1
[[],[[[[],[]]]]] => 1
[[],[[[[[]]]]]] => 1
[[[]],[],[],[],[]] => 0
[[[]],[],[],[[]]] => 0
[[[]],[],[[]],[]] => 0
[[[]],[],[[],[]]] => 0
[[[]],[],[[[]]]] => 1
[[[]],[[]],[],[]] => 0
[[[]],[[]],[[]]] => 1
[[[]],[[],[]],[]] => 0
[[[]],[[[]]],[]] => 1
[[[]],[[],[],[]]] => 1
[[[]],[[],[[]]]] => 1
[[[]],[[[]],[]]] => 1
[[[]],[[[],[]]]] => 2
[[[]],[[[[]]]]] => 2
[[[],[]],[],[],[]] => 0
[[[[]]],[],[],[]] => 1
[[[],[]],[],[[]]] => 0
[[[[]]],[],[[]]] => 1
[[[],[]],[[]],[]] => 0
[[[[]]],[[]],[]] => 1
[[[],[]],[[],[]]] => 1
[[[],[]],[[[]]]] => 2
[[[[]]],[[],[]]] => 2
[[[[]]],[[[]]]] => 2
[[[],[],[]],[],[]] => 0
[[[],[[]]],[],[]] => 0
[[[[]],[]],[],[]] => 0
[[[[],[]]],[],[]] => 1
[[[[[]]]],[],[]] => 1
[[[],[],[]],[[]]] => 1
[[[],[[]]],[[]]] => 1
[[[[]],[]],[[]]] => 1
[[[[],[]]],[[]]] => 2
[[[[[]]]],[[]]] => 2
[[[],[],[],[]],[]] => 0
[[[],[],[[]]],[]] => 0
[[[],[[]],[]],[]] => 0
[[[],[[],[]]],[]] => 0
[[[],[[[]]]],[]] => 1
[[[[]],[],[]],[]] => 0
[[[[]],[[]]],[]] => 1
[[[[],[]],[]],[]] => 0
[[[[[]]],[]],[]] => 1
[[[[],[],[]]],[]] => 1
[[[[],[[]]]],[]] => 1
[[[[[]],[]]],[]] => 1
[[[[[],[]]]],[]] => 1
[[[[[[]]]]],[]] => 1
[[[],[],[],[],[]]] => 1
[[[],[],[],[[]]]] => 1
[[[],[],[[]],[]]] => 1
[[[],[],[[],[]]]] => 1
[[[],[],[[[]]]]] => 2
[[[],[[]],[],[]]] => 1
[[[],[[]],[[]]]] => 1
[[[],[[],[]],[]]] => 1
[[[],[[[]]],[]]] => 2
[[[],[[],[],[]]]] => 1
[[[],[[],[[]]]]] => 1
[[[],[[[]],[]]]] => 1
[[[],[[[],[]]]]] => 2
[[[],[[[[]]]]]] => 2
[[[[]],[],[],[]]] => 1
[[[[]],[],[[]]]] => 1
[[[[]],[[]],[]]] => 1
[[[[]],[[],[]]]] => 1
[[[[]],[[[]]]]] => 2
[[[[],[]],[],[]]] => 1
[[[[[]]],[],[]]] => 2
[[[[],[]],[[]]]] => 1
[[[[[]]],[[]]]] => 2
[[[[],[],[]],[]]] => 1
[[[[],[[]]],[]]] => 1
[[[[[]],[]],[]]] => 1
[[[[[],[]]],[]]] => 2
[[[[[[]]]],[]]] => 2
[[[[],[],[],[]]]] => 1
[[[[],[],[[]]]]] => 1
[[[[],[[]],[]]]] => 1
[[[[],[[],[]]]]] => 1
[[[[],[[[]]]]]] => 2
[[[[[]],[],[]]]] => 1
[[[[[]],[[]]]]] => 1
[[[[[],[]],[]]]] => 1
[[[[[[]]],[]]]] => 2
[[[[[],[],[]]]]] => 1
[[[[[],[[]]]]]] => 1
[[[[[[]],[]]]]] => 1
[[[[[[],[]]]]]] => 1
[[[[[[[]]]]]]] => 1
[[],[],[],[],[],[],[]] => 0
[[],[],[],[],[],[[]]] => 0
[[],[],[],[],[[]],[]] => 0
[[],[],[],[],[[],[]]] => 0
[[],[],[],[],[[[]]]] => 1
[[],[],[],[[]],[],[]] => 0
[[],[],[],[[]],[[]]] => 0
[[],[],[],[[],[]],[]] => 0
[[],[],[],[[[]]],[]] => 1
[[],[],[],[[],[],[]]] => 0
[[],[],[],[[],[[]]]] => 0
[[],[],[],[[[]],[]]] => 0
[[],[],[],[[[],[]]]] => 1
[[],[],[],[[[[]]]]] => 1
[[],[],[[]],[],[],[]] => 0
[[],[],[[]],[],[[]]] => 0
[[],[],[[]],[[]],[]] => 0
[[],[],[[]],[[],[]]] => 0
[[],[],[[]],[[[]]]] => 1
[[],[],[[],[]],[],[]] => 0
[[],[],[[[]]],[],[]] => 1
[[],[],[[],[]],[[]]] => 0
[[],[],[[[]]],[[]]] => 1
[[],[],[[],[],[]],[]] => 0
[[],[],[[],[[]]],[]] => 0
[[],[],[[[]],[]],[]] => 0
[[],[],[[[],[]]],[]] => 1
[[],[],[[[[]]]],[]] => 1
[[],[],[[],[],[],[]]] => 0
[[],[],[[],[],[[]]]] => 0
[[],[],[[],[[]],[]]] => 0
[[],[],[[],[[],[]]]] => 0
[[],[],[[],[[[]]]]] => 1
[[],[],[[[]],[],[]]] => 0
[[],[],[[[]],[[]]]] => 1
[[],[],[[[],[]],[]]] => 0
[[],[],[[[[]]],[]]] => 1
[[],[],[[[],[],[]]]] => 1
[[],[],[[[],[[]]]]] => 1
[[],[],[[[[]],[]]]] => 1
[[],[],[[[[],[]]]]] => 1
[[],[],[[[[[]]]]]] => 1
[[],[[]],[],[],[],[]] => 0
[[],[[]],[],[],[[]]] => 0
[[],[[]],[],[[]],[]] => 0
[[],[[]],[],[[],[]]] => 0
[[],[[]],[],[[[]]]] => 1
[[],[[]],[[]],[],[]] => 0
[[],[[]],[[]],[[]]] => 0
[[],[[]],[[],[]],[]] => 0
[[],[[]],[[[]]],[]] => 1
[[],[[]],[[],[],[]]] => 0
[[],[[]],[[],[[]]]] => 0
[[],[[]],[[[]],[]]] => 0
[[],[[]],[[[],[]]]] => 1
[[],[[]],[[[[]]]]] => 1
[[],[[],[]],[],[],[]] => 0
[[],[[[]]],[],[],[]] => 1
[[],[[],[]],[],[[]]] => 0
[[],[[[]]],[],[[]]] => 1
[[],[[],[]],[[]],[]] => 0
[[],[[[]]],[[]],[]] => 1
[[],[[],[]],[[],[]]] => 0
[[],[[],[]],[[[]]]] => 1
[[],[[[]]],[[],[]]] => 1
[[],[[[]]],[[[]]]] => 2
[[],[[],[],[]],[],[]] => 0
[[],[[],[[]]],[],[]] => 0
[[],[[[]],[]],[],[]] => 0
[[],[[[],[]]],[],[]] => 1
[[],[[[[]]]],[],[]] => 1
[[],[[],[],[]],[[]]] => 0
[[],[[],[[]]],[[]]] => 0
[[],[[[]],[]],[[]]] => 0
[[],[[[],[]]],[[]]] => 1
[[],[[[[]]]],[[]]] => 1
[[],[[],[],[],[]],[]] => 0
[[],[[],[],[[]]],[]] => 0
[[],[[],[[]],[]],[]] => 0
[[],[[],[[],[]]],[]] => 0
[[],[[],[[[]]]],[]] => 1
[[],[[[]],[],[]],[]] => 0
[[],[[[]],[[]]],[]] => 1
[[],[[[],[]],[]],[]] => 0
[[],[[[[]]],[]],[]] => 1
[[],[[[],[],[]]],[]] => 1
[[],[[[],[[]]]],[]] => 1
[[],[[[[]],[]]],[]] => 1
[[],[[[[],[]]]],[]] => 1
[[],[[[[[]]]]],[]] => 1
[[],[[],[],[],[],[]]] => 0
[[],[[],[],[],[[]]]] => 0
[[],[[],[],[[]],[]]] => 0
[[],[[],[],[[],[]]]] => 0
[[],[[],[],[[[]]]]] => 1
[[],[[],[[]],[],[]]] => 0
[[],[[],[[]],[[]]]] => 0
[[],[[],[[],[]],[]]] => 0
[[],[[],[[[]]],[]]] => 1
[[],[[],[[],[],[]]]] => 0
[[],[[],[[],[[]]]]] => 0
[[],[[],[[[]],[]]]] => 0
[[],[[],[[[],[]]]]] => 1
[[],[[],[[[[]]]]]] => 1
[[],[[[]],[],[],[]]] => 0
[[],[[[]],[],[[]]]] => 0
[[],[[[]],[[]],[]]] => 0
[[],[[[]],[[],[]]]] => 1
[[],[[[]],[[[]]]]] => 2
[[],[[[],[]],[],[]]] => 0
[[],[[[[]]],[],[]]] => 1
[[],[[[],[]],[[]]]] => 1
[[],[[[[]]],[[]]]] => 2
[[],[[[],[],[]],[]]] => 0
[[],[[[],[[]]],[]]] => 0
[[],[[[[]],[]],[]]] => 0
[[],[[[[],[]]],[]]] => 1
[[],[[[[[]]]],[]]] => 1
[[],[[[],[],[],[]]]] => 1
[[],[[[],[],[[]]]]] => 1
[[],[[[],[[]],[]]]] => 1
[[],[[[],[[],[]]]]] => 1
[[],[[[],[[[]]]]]] => 2
[[],[[[[]],[],[]]]] => 1
[[],[[[[]],[[]]]]] => 1
[[],[[[[],[]],[]]]] => 1
[[],[[[[[]]],[]]]] => 2
[[],[[[[],[],[]]]]] => 1
[[],[[[[],[[]]]]]] => 1
[[],[[[[[]],[]]]]] => 1
[[],[[[[[],[]]]]]] => 1
[[],[[[[[[]]]]]]] => 1
[[[]],[],[],[],[],[]] => 0
[[[]],[],[],[],[[]]] => 0
[[[]],[],[],[[]],[]] => 0
[[[]],[],[],[[],[]]] => 0
[[[]],[],[],[[[]]]] => 1
[[[]],[],[[]],[],[]] => 0
[[[]],[],[[]],[[]]] => 0
[[[]],[],[[],[]],[]] => 0
[[[]],[],[[[]]],[]] => 1
[[[]],[],[[],[],[]]] => 0
[[[]],[],[[],[[]]]] => 0
[[[]],[],[[[]],[]]] => 0
[[[]],[],[[[],[]]]] => 1
[[[]],[],[[[[]]]]] => 1
[[[]],[[]],[],[],[]] => 0
[[[]],[[]],[],[[]]] => 0
[[[]],[[]],[[]],[]] => 0
[[[]],[[]],[[],[]]] => 1
[[[]],[[]],[[[]]]] => 2
[[[]],[[],[]],[],[]] => 0
[[[]],[[[]]],[],[]] => 1
[[[]],[[],[]],[[]]] => 1
[[[]],[[[]]],[[]]] => 2
[[[]],[[],[],[]],[]] => 0
[[[]],[[],[[]]],[]] => 0
[[[]],[[[]],[]],[]] => 0
[[[]],[[[],[]]],[]] => 1
[[[]],[[[[]]]],[]] => 1
[[[]],[[],[],[],[]]] => 1
[[[]],[[],[],[[]]]] => 1
[[[]],[[],[[]],[]]] => 1
[[[]],[[],[[],[]]]] => 1
[[[]],[[],[[[]]]]] => 2
[[[]],[[[]],[],[]]] => 1
[[[]],[[[]],[[]]]] => 2
[[[]],[[[],[]],[]]] => 1
[[[]],[[[[]]],[]]] => 2
[[[]],[[[],[],[]]]] => 2
[[[]],[[[],[[]]]]] => 2
[[[]],[[[[]],[]]]] => 2
[[[]],[[[[],[]]]]] => 2
[[[]],[[[[[]]]]]] => 2
[[[],[]],[],[],[],[]] => 0
[[[[]]],[],[],[],[]] => 1
[[[],[]],[],[],[[]]] => 0
[[[[]]],[],[],[[]]] => 1
[[[],[]],[],[[]],[]] => 0
[[[[]]],[],[[]],[]] => 1
[[[],[]],[],[[],[]]] => 0
[[[],[]],[],[[[]]]] => 1
[[[[]]],[],[[],[]]] => 1
[[[[]]],[],[[[]]]] => 2
[[[],[]],[[]],[],[]] => 0
[[[[]]],[[]],[],[]] => 1
[[[],[]],[[]],[[]]] => 1
[[[[]]],[[]],[[]]] => 2
[[[],[]],[[],[]],[]] => 0
[[[],[]],[[[]]],[]] => 1
[[[[]]],[[],[]],[]] => 1
[[[[]]],[[[]]],[]] => 2
[[[],[]],[[],[],[]]] => 1
[[[],[]],[[],[[]]]] => 1
[[[],[]],[[[]],[]]] => 1
[[[],[]],[[[],[]]]] => 2
[[[],[]],[[[[]]]]] => 2
[[[[]]],[[],[],[]]] => 2
[[[[]]],[[],[[]]]] => 2
[[[[]]],[[[]],[]]] => 2
[[[[]]],[[[],[]]]] => 2
[[[[]]],[[[[]]]]] => 2
[[[],[],[]],[],[],[]] => 0
[[[],[[]]],[],[],[]] => 0
[[[[]],[]],[],[],[]] => 0
[[[[],[]]],[],[],[]] => 1
[[[[[]]]],[],[],[]] => 1
[[[],[],[]],[],[[]]] => 0
[[[],[[]]],[],[[]]] => 0
[[[[]],[]],[],[[]]] => 0
[[[[],[]]],[],[[]]] => 1
[[[[[]]]],[],[[]]] => 1
[[[],[],[]],[[]],[]] => 0
[[[],[[]]],[[]],[]] => 0
[[[[]],[]],[[]],[]] => 0
[[[[],[]]],[[]],[]] => 1
[[[[[]]]],[[]],[]] => 1
[[[],[],[]],[[],[]]] => 1
[[[],[],[]],[[[]]]] => 2
[[[],[[]]],[[],[]]] => 1
[[[],[[]]],[[[]]]] => 2
[[[[]],[]],[[],[]]] => 1
[[[[]],[]],[[[]]]] => 2
[[[[],[]]],[[],[]]] => 2
[[[[],[]]],[[[]]]] => 2
[[[[[]]]],[[],[]]] => 2
[[[[[]]]],[[[]]]] => 2
[[[],[],[],[]],[],[]] => 0
[[[],[],[[]]],[],[]] => 0
[[[],[[]],[]],[],[]] => 0
[[[],[[],[]]],[],[]] => 0
[[[],[[[]]]],[],[]] => 1
[[[[]],[],[]],[],[]] => 0
[[[[]],[[]]],[],[]] => 1
[[[[],[]],[]],[],[]] => 0
[[[[[]]],[]],[],[]] => 1
[[[[],[],[]]],[],[]] => 1
[[[[],[[]]]],[],[]] => 1
[[[[[]],[]]],[],[]] => 1
[[[[[],[]]]],[],[]] => 1
[[[[[[]]]]],[],[]] => 1
[[[],[],[],[]],[[]]] => 1
[[[],[],[[]]],[[]]] => 1
[[[],[[]],[]],[[]]] => 1
[[[],[[],[]]],[[]]] => 1
[[[],[[[]]]],[[]]] => 2
[[[[]],[],[]],[[]]] => 1
[[[[]],[[]]],[[]]] => 2
[[[[],[]],[]],[[]]] => 1
[[[[[]]],[]],[[]]] => 2
[[[[],[],[]]],[[]]] => 2
[[[[],[[]]]],[[]]] => 2
[[[[[]],[]]],[[]]] => 2
[[[[[],[]]]],[[]]] => 2
[[[[[[]]]]],[[]]] => 2
[[[],[],[],[],[]],[]] => 0
[[[],[],[],[[]]],[]] => 0
[[[],[],[[]],[]],[]] => 0
[[[],[],[[],[]]],[]] => 0
[[[],[],[[[]]]],[]] => 1
[[[],[[]],[],[]],[]] => 0
[[[],[[]],[[]]],[]] => 0
[[[],[[],[]],[]],[]] => 0
[[[],[[[]]],[]],[]] => 1
[[[],[[],[],[]]],[]] => 0
[[[],[[],[[]]]],[]] => 0
[[[],[[[]],[]]],[]] => 0
[[[],[[[],[]]]],[]] => 1
[[[],[[[[]]]]],[]] => 1
[[[[]],[],[],[]],[]] => 0
[[[[]],[],[[]]],[]] => 0
[[[[]],[[]],[]],[]] => 0
[[[[]],[[],[]]],[]] => 1
[[[[]],[[[]]]],[]] => 2
[[[[],[]],[],[]],[]] => 0
[[[[[]]],[],[]],[]] => 1
[[[[],[]],[[]]],[]] => 1
[[[[[]]],[[]]],[]] => 2
[[[[],[],[]],[]],[]] => 0
[[[[],[[]]],[]],[]] => 0
[[[[[]],[]],[]],[]] => 0
[[[[[],[]]],[]],[]] => 1
[[[[[[]]]],[]],[]] => 1
[[[[],[],[],[]]],[]] => 1
[[[[],[],[[]]]],[]] => 1
[[[[],[[]],[]]],[]] => 1
[[[[],[[],[]]]],[]] => 1
[[[[],[[[]]]]],[]] => 2
[[[[[]],[],[]]],[]] => 1
[[[[[]],[[]]]],[]] => 1
[[[[[],[]],[]]],[]] => 1
[[[[[[]]],[]]],[]] => 2
[[[[[],[],[]]]],[]] => 1
[[[[[],[[]]]]],[]] => 1
[[[[[[]],[]]]],[]] => 1
[[[[[[],[]]]]],[]] => 1
[[[[[[[]]]]]],[]] => 1
[[[],[],[],[],[],[]]] => 1
[[[],[],[],[],[[]]]] => 1
[[[],[],[],[[]],[]]] => 1
[[[],[],[],[[],[]]]] => 1
[[[],[],[],[[[]]]]] => 2
[[[],[],[[]],[],[]]] => 1
[[[],[],[[]],[[]]]] => 1
[[[],[],[[],[]],[]]] => 1
[[[],[],[[[]]],[]]] => 2
[[[],[],[[],[],[]]]] => 1
[[[],[],[[],[[]]]]] => 1
[[[],[],[[[]],[]]]] => 1
[[[],[],[[[],[]]]]] => 2
[[[],[],[[[[]]]]]] => 2
[[[],[[]],[],[],[]]] => 1
[[[],[[]],[],[[]]]] => 1
[[[],[[]],[[]],[]]] => 1
[[[],[[]],[[],[]]]] => 1
[[[],[[]],[[[]]]]] => 2
[[[],[[],[]],[],[]]] => 1
[[[],[[[]]],[],[]]] => 2
[[[],[[],[]],[[]]]] => 1
[[[],[[[]]],[[]]]] => 2
[[[],[[],[],[]],[]]] => 1
[[[],[[],[[]]],[]]] => 1
[[[],[[[]],[]],[]]] => 1
[[[],[[[],[]]],[]]] => 2
[[[],[[[[]]]],[]]] => 2
[[[],[[],[],[],[]]]] => 1
[[[],[[],[],[[]]]]] => 1
[[[],[[],[[]],[]]]] => 1
[[[],[[],[[],[]]]]] => 1
[[[],[[],[[[]]]]]] => 2
[[[],[[[]],[],[]]]] => 1
[[[],[[[]],[[]]]]] => 2
[[[],[[[],[]],[]]]] => 1
[[[],[[[[]]],[]]]] => 2
[[[],[[[],[],[]]]]] => 2
[[[],[[[],[[]]]]]] => 2
[[[],[[[[]],[]]]]] => 2
[[[],[[[[],[]]]]]] => 2
[[[],[[[[[]]]]]]] => 2
[[[[]],[],[],[],[]]] => 1
[[[[]],[],[],[[]]]] => 1
[[[[]],[],[[]],[]]] => 1
[[[[]],[],[[],[]]]] => 1
[[[[]],[],[[[]]]]] => 2
[[[[]],[[]],[],[]]] => 1
[[[[]],[[]],[[]]]] => 1
[[[[]],[[],[]],[]]] => 1
[[[[]],[[[]]],[]]] => 2
[[[[]],[[],[],[]]]] => 1
[[[[]],[[],[[]]]]] => 1
[[[[]],[[[]],[]]]] => 1
[[[[]],[[[],[]]]]] => 2
[[[[]],[[[[]]]]]] => 2
[[[[],[]],[],[],[]]] => 1
[[[[[]]],[],[],[]]] => 2
[[[[],[]],[],[[]]]] => 1
[[[[[]]],[],[[]]]] => 2
[[[[],[]],[[]],[]]] => 1
[[[[[]]],[[]],[]]] => 2
[[[[],[]],[[],[]]]] => 1
[[[[],[]],[[[]]]]] => 2
[[[[[]]],[[],[]]]] => 2
[[[[[]]],[[[]]]]] => 2
[[[[],[],[]],[],[]]] => 1
[[[[],[[]]],[],[]]] => 1
[[[[[]],[]],[],[]]] => 1
[[[[[],[]]],[],[]]] => 2
[[[[[[]]]],[],[]]] => 2
[[[[],[],[]],[[]]]] => 1
[[[[],[[]]],[[]]]] => 1
[[[[[]],[]],[[]]]] => 1
[[[[[],[]]],[[]]]] => 2
[[[[[[]]]],[[]]]] => 2
[[[[],[],[],[]],[]]] => 1
[[[[],[],[[]]],[]]] => 1
[[[[],[[]],[]],[]]] => 1
[[[[],[[],[]]],[]]] => 1
[[[[],[[[]]]],[]]] => 2
[[[[[]],[],[]],[]]] => 1
[[[[[]],[[]]],[]]] => 2
[[[[[],[]],[]],[]]] => 1
[[[[[[]]],[]],[]]] => 2
[[[[[],[],[]]],[]]] => 2
[[[[[],[[]]]],[]]] => 2
[[[[[[]],[]]],[]]] => 2
[[[[[[],[]]]],[]]] => 2
[[[[[[[]]]]],[]]] => 2
[[[[],[],[],[],[]]]] => 1
[[[[],[],[],[[]]]]] => 1
[[[[],[],[[]],[]]]] => 1
[[[[],[],[[],[]]]]] => 1
[[[[],[],[[[]]]]]] => 2
[[[[],[[]],[],[]]]] => 1
[[[[],[[]],[[]]]]] => 1
[[[[],[[],[]],[]]]] => 1
[[[[],[[[]]],[]]]] => 2
[[[[],[[],[],[]]]]] => 1
[[[[],[[],[[]]]]]] => 1
[[[[],[[[]],[]]]]] => 1
[[[[],[[[],[]]]]]] => 2
[[[[],[[[[]]]]]]] => 2
[[[[[]],[],[],[]]]] => 1
[[[[[]],[],[[]]]]] => 1
[[[[[]],[[]],[]]]] => 1
[[[[[]],[[],[]]]]] => 1
[[[[[]],[[[]]]]]] => 2
[[[[[],[]],[],[]]]] => 1
[[[[[[]]],[],[]]]] => 2
[[[[[],[]],[[]]]]] => 1
[[[[[[]]],[[]]]]] => 2
[[[[[],[],[]],[]]]] => 1
[[[[[],[[]]],[]]]] => 1
[[[[[[]],[]],[]]]] => 1
[[[[[[],[]]],[]]]] => 2
[[[[[[[]]]],[]]]] => 2
[[[[[],[],[],[]]]]] => 1
[[[[[],[],[[]]]]]] => 1
[[[[[],[[]],[]]]]] => 1
[[[[[],[[],[]]]]]] => 1
[[[[[],[[[]]]]]]] => 2
[[[[[[]],[],[]]]]] => 1
[[[[[[]],[[]]]]]] => 1
[[[[[[],[]],[]]]]] => 1
[[[[[[[]]],[]]]]] => 2
[[[[[[],[],[]]]]]] => 1
[[[[[[],[[]]]]]]] => 1
[[[[[[[]],[]]]]]] => 1
[[[[[[[],[]]]]]]] => 1
[[[[[[[[]]]]]]]] => 1
[[],[],[],[],[],[],[],[]] => 0
[[],[],[],[],[],[],[[]]] => 0
[[],[],[],[],[],[[]],[]] => 0
[[],[],[],[],[],[[],[]]] => 0
[[],[],[],[],[],[[[]]]] => 1
[[],[],[],[],[[]],[],[]] => 0
[[],[],[],[],[[]],[[]]] => 0
[[],[],[],[],[[],[]],[]] => 0
[[],[],[],[],[[[]]],[]] => 1
[[],[],[],[],[[],[],[]]] => 0
[[],[],[],[],[[],[[]]]] => 0
[[],[],[],[],[[[]],[]]] => 0
[[],[],[],[],[[[],[]]]] => 1
[[],[],[],[],[[[[]]]]] => 1
[[],[],[],[[]],[],[],[]] => 0
[[],[],[],[[]],[],[[]]] => 0
[[],[],[],[[]],[[]],[]] => 0
[[],[],[],[[]],[[],[]]] => 0
[[],[],[],[[]],[[[]]]] => 1
[[],[],[],[[],[]],[],[]] => 0
[[],[],[],[[[]]],[],[]] => 1
[[],[],[],[[],[]],[[]]] => 0
[[],[],[],[[[]]],[[]]] => 1
[[],[],[],[[],[],[]],[]] => 0
[[],[],[],[[],[[]]],[]] => 0
[[],[],[],[[[]],[]],[]] => 0
[[],[],[],[[[],[]]],[]] => 1
[[],[],[],[[[[]]]],[]] => 1
[[],[],[],[[],[],[],[]]] => 0
[[],[],[],[[],[],[[]]]] => 0
[[],[],[],[[],[[]],[]]] => 0
[[],[],[],[[],[[],[]]]] => 0
[[],[],[],[[],[[[]]]]] => 1
[[],[],[],[[[]],[],[]]] => 0
[[],[],[],[[[]],[[]]]] => 1
[[],[],[],[[[],[]],[]]] => 0
[[],[],[],[[[[]]],[]]] => 1
[[],[],[],[[[],[],[]]]] => 1
[[],[],[],[[[],[[]]]]] => 1
[[],[],[],[[[[]],[]]]] => 1
[[],[],[],[[[[],[]]]]] => 1
[[],[],[],[[[[[]]]]]] => 1
[[],[],[[]],[],[],[],[]] => 0
[[],[],[[]],[],[],[[]]] => 0
[[],[],[[]],[],[[]],[]] => 0
[[],[],[[]],[],[[],[]]] => 0
[[],[],[[]],[],[[[]]]] => 1
[[],[],[[]],[[]],[],[]] => 0
[[],[],[[]],[[]],[[]]] => 0
[[],[],[[]],[[],[]],[]] => 0
[[],[],[[]],[[[]]],[]] => 1
[[],[],[[]],[[],[],[]]] => 0
[[],[],[[]],[[],[[]]]] => 0
[[],[],[[]],[[[]],[]]] => 0
[[],[],[[]],[[[],[]]]] => 1
[[],[],[[]],[[[[]]]]] => 1
[[],[],[[],[]],[],[],[]] => 0
[[],[],[[[]]],[],[],[]] => 1
[[],[],[[],[]],[],[[]]] => 0
[[],[],[[[]]],[],[[]]] => 1
[[],[],[[],[]],[[]],[]] => 0
[[],[],[[[]]],[[]],[]] => 1
[[],[],[[],[]],[[],[]]] => 0
[[],[],[[],[]],[[[]]]] => 1
[[],[],[[[]]],[[],[]]] => 1
[[],[],[[[]]],[[[]]]] => 2
[[],[],[[],[],[]],[],[]] => 0
[[],[],[[],[[]]],[],[]] => 0
[[],[],[[[]],[]],[],[]] => 0
[[],[],[[[],[]]],[],[]] => 1
[[],[],[[[[]]]],[],[]] => 1
[[],[],[[],[],[]],[[]]] => 0
[[],[],[[],[[]]],[[]]] => 0
[[],[],[[[]],[]],[[]]] => 0
[[],[],[[[],[]]],[[]]] => 1
[[],[],[[[[]]]],[[]]] => 1
[[],[],[[],[],[],[]],[]] => 0
[[],[],[[],[],[[]]],[]] => 0
[[],[],[[],[[]],[]],[]] => 0
[[],[],[[],[[],[]]],[]] => 0
[[],[],[[],[[[]]]],[]] => 1
[[],[],[[[]],[],[]],[]] => 0
[[],[],[[[]],[[]]],[]] => 1
[[],[],[[[],[]],[]],[]] => 0
[[],[],[[[[]]],[]],[]] => 1
[[],[],[[[],[],[]]],[]] => 1
[[],[],[[[],[[]]]],[]] => 1
[[],[],[[[[]],[]]],[]] => 1
[[],[],[[[[],[]]]],[]] => 1
[[],[],[[[[[]]]]],[]] => 1
[[],[],[[],[],[],[],[]]] => 0
[[],[],[[],[],[],[[]]]] => 0
[[],[],[[],[],[[]],[]]] => 0
[[],[],[[],[],[[],[]]]] => 0
[[],[],[[],[],[[[]]]]] => 1
[[],[],[[],[[]],[],[]]] => 0
[[],[],[[],[[]],[[]]]] => 0
[[],[],[[],[[],[]],[]]] => 0
[[],[],[[],[[[]]],[]]] => 1
[[],[],[[],[[],[],[]]]] => 0
[[],[],[[],[[],[[]]]]] => 0
[[],[],[[],[[[]],[]]]] => 0
[[],[],[[],[[[],[]]]]] => 1
[[],[],[[],[[[[]]]]]] => 1
[[],[],[[[]],[],[],[]]] => 0
[[],[],[[[]],[],[[]]]] => 0
[[],[],[[[]],[[]],[]]] => 0
[[],[],[[[]],[[],[]]]] => 1
[[],[],[[[]],[[[]]]]] => 2
[[],[],[[[],[]],[],[]]] => 0
[[],[],[[[[]]],[],[]]] => 1
[[],[],[[[],[]],[[]]]] => 1
[[],[],[[[[]]],[[]]]] => 2
[[],[],[[[],[],[]],[]]] => 0
[[],[],[[[],[[]]],[]]] => 0
[[],[],[[[[]],[]],[]]] => 0
[[],[],[[[[],[]]],[]]] => 1
[[],[],[[[[[]]]],[]]] => 1
[[],[],[[[],[],[],[]]]] => 1
[[],[],[[[],[],[[]]]]] => 1
[[],[],[[[],[[]],[]]]] => 1
[[],[],[[[],[[],[]]]]] => 1
[[],[],[[[],[[[]]]]]] => 2
[[],[],[[[[]],[],[]]]] => 1
[[],[],[[[[]],[[]]]]] => 1
[[],[],[[[[],[]],[]]]] => 1
[[],[],[[[[[]]],[]]]] => 2
[[],[],[[[[],[],[]]]]] => 1
[[],[],[[[[],[[]]]]]] => 1
[[],[],[[[[[]],[]]]]] => 1
[[],[],[[[[[],[]]]]]] => 1
[[],[],[[[[[[]]]]]]] => 1
[[],[[]],[],[],[],[],[]] => 0
[[],[[]],[],[],[],[[]]] => 0
[[],[[]],[],[],[[]],[]] => 0
[[],[[]],[],[],[[],[]]] => 0
[[],[[]],[],[],[[[]]]] => 1
[[],[[]],[],[[]],[],[]] => 0
[[],[[]],[],[[]],[[]]] => 0
[[],[[]],[],[[],[]],[]] => 0
[[],[[]],[],[[[]]],[]] => 1
[[],[[]],[],[[],[],[]]] => 0
[[],[[]],[],[[],[[]]]] => 0
[[],[[]],[],[[[]],[]]] => 0
[[],[[]],[],[[[],[]]]] => 1
[[],[[]],[],[[[[]]]]] => 1
[[],[[]],[[]],[],[],[]] => 0
[[],[[]],[[]],[],[[]]] => 0
[[],[[]],[[]],[[]],[]] => 0
[[],[[]],[[]],[[],[]]] => 0
[[],[[]],[[]],[[[]]]] => 1
[[],[[]],[[],[]],[],[]] => 0
[[],[[]],[[[]]],[],[]] => 1
[[],[[]],[[],[]],[[]]] => 0
[[],[[]],[[[]]],[[]]] => 1
[[],[[]],[[],[],[]],[]] => 0
[[],[[]],[[],[[]]],[]] => 0
[[],[[]],[[[]],[]],[]] => 0
[[],[[]],[[[],[]]],[]] => 1
[[],[[]],[[[[]]]],[]] => 1
[[],[[]],[[],[],[],[]]] => 0
[[],[[]],[[],[],[[]]]] => 0
[[],[[]],[[],[[]],[]]] => 0
[[],[[]],[[],[[],[]]]] => 0
[[],[[]],[[],[[[]]]]] => 1
[[],[[]],[[[]],[],[]]] => 0
[[],[[]],[[[]],[[]]]] => 1
[[],[[]],[[[],[]],[]]] => 0
[[],[[]],[[[[]]],[]]] => 1
[[],[[]],[[[],[],[]]]] => 1
[[],[[]],[[[],[[]]]]] => 1
[[],[[]],[[[[]],[]]]] => 1
[[],[[]],[[[[],[]]]]] => 1
[[],[[]],[[[[[]]]]]] => 1
[[],[[],[]],[],[],[],[]] => 0
[[],[[[]]],[],[],[],[]] => 1
[[],[[],[]],[],[],[[]]] => 0
[[],[[[]]],[],[],[[]]] => 1
[[],[[],[]],[],[[]],[]] => 0
[[],[[[]]],[],[[]],[]] => 1
[[],[[],[]],[],[[],[]]] => 0
[[],[[],[]],[],[[[]]]] => 1
[[],[[[]]],[],[[],[]]] => 1
[[],[[[]]],[],[[[]]]] => 2
[[],[[],[]],[[]],[],[]] => 0
[[],[[[]]],[[]],[],[]] => 1
[[],[[],[]],[[]],[[]]] => 0
[[],[[[]]],[[]],[[]]] => 1
[[],[[],[]],[[],[]],[]] => 0
[[],[[],[]],[[[]]],[]] => 1
[[],[[[]]],[[],[]],[]] => 1
[[],[[[]]],[[[]]],[]] => 2
[[],[[],[]],[[],[],[]]] => 0
[[],[[],[]],[[],[[]]]] => 0
[[],[[],[]],[[[]],[]]] => 0
[[],[[],[]],[[[],[]]]] => 1
[[],[[],[]],[[[[]]]]] => 1
[[],[[[]]],[[],[],[]]] => 1
[[],[[[]]],[[],[[]]]] => 1
[[],[[[]]],[[[]],[]]] => 1
[[],[[[]]],[[[],[]]]] => 2
[[],[[[]]],[[[[]]]]] => 2
[[],[[],[],[]],[],[],[]] => 0
[[],[[],[[]]],[],[],[]] => 0
[[],[[[]],[]],[],[],[]] => 0
[[],[[[],[]]],[],[],[]] => 1
[[],[[[[]]]],[],[],[]] => 1
[[],[[],[],[]],[],[[]]] => 0
[[],[[],[[]]],[],[[]]] => 0
[[],[[[]],[]],[],[[]]] => 0
[[],[[[],[]]],[],[[]]] => 1
[[],[[[[]]]],[],[[]]] => 1
[[],[[],[],[]],[[]],[]] => 0
[[],[[],[[]]],[[]],[]] => 0
[[],[[[]],[]],[[]],[]] => 0
[[],[[[],[]]],[[]],[]] => 1
[[],[[[[]]]],[[]],[]] => 1
[[],[[],[],[]],[[],[]]] => 0
[[],[[],[],[]],[[[]]]] => 1
[[],[[],[[]]],[[],[]]] => 0
[[],[[],[[]]],[[[]]]] => 1
[[],[[[]],[]],[[],[]]] => 0
[[],[[[]],[]],[[[]]]] => 1
[[],[[[],[]]],[[],[]]] => 1
[[],[[[],[]]],[[[]]]] => 2
[[],[[[[]]]],[[],[]]] => 1
[[],[[[[]]]],[[[]]]] => 2
[[],[[],[],[],[]],[],[]] => 0
[[],[[],[],[[]]],[],[]] => 0
[[],[[],[[]],[]],[],[]] => 0
[[],[[],[[],[]]],[],[]] => 0
[[],[[],[[[]]]],[],[]] => 1
[[],[[[]],[],[]],[],[]] => 0
[[],[[[]],[[]]],[],[]] => 1
[[],[[[],[]],[]],[],[]] => 0
[[],[[[[]]],[]],[],[]] => 1
[[],[[[],[],[]]],[],[]] => 1
[[],[[[],[[]]]],[],[]] => 1
[[],[[[[]],[]]],[],[]] => 1
[[],[[[[],[]]]],[],[]] => 1
[[],[[[[[]]]]],[],[]] => 1
[[],[[],[],[],[]],[[]]] => 0
[[],[[],[],[[]]],[[]]] => 0
[[],[[],[[]],[]],[[]]] => 0
[[],[[],[[],[]]],[[]]] => 0
[[],[[],[[[]]]],[[]]] => 1
[[],[[[]],[],[]],[[]]] => 0
[[],[[[]],[[]]],[[]]] => 1
[[],[[[],[]],[]],[[]]] => 0
[[],[[[[]]],[]],[[]]] => 1
[[],[[[],[],[]]],[[]]] => 1
[[],[[[],[[]]]],[[]]] => 1
[[],[[[[]],[]]],[[]]] => 1
[[],[[[[],[]]]],[[]]] => 1
[[],[[[[[]]]]],[[]]] => 1
[[],[[],[],[],[],[]],[]] => 0
[[],[[],[],[],[[]]],[]] => 0
[[],[[],[],[[]],[]],[]] => 0
[[],[[],[],[[],[]]],[]] => 0
[[],[[],[],[[[]]]],[]] => 1
[[],[[],[[]],[],[]],[]] => 0
[[],[[],[[]],[[]]],[]] => 0
[[],[[],[[],[]],[]],[]] => 0
[[],[[],[[[]]],[]],[]] => 1
[[],[[],[[],[],[]]],[]] => 0
[[],[[],[[],[[]]]],[]] => 0
[[],[[],[[[]],[]]],[]] => 0
[[],[[],[[[],[]]]],[]] => 1
[[],[[],[[[[]]]]],[]] => 1
[[],[[[]],[],[],[]],[]] => 0
[[],[[[]],[],[[]]],[]] => 0
[[],[[[]],[[]],[]],[]] => 0
[[],[[[]],[[],[]]],[]] => 1
[[],[[[]],[[[]]]],[]] => 2
[[],[[[],[]],[],[]],[]] => 0
[[],[[[[]]],[],[]],[]] => 1
[[],[[[],[]],[[]]],[]] => 1
[[],[[[[]]],[[]]],[]] => 2
[[],[[[],[],[]],[]],[]] => 0
[[],[[[],[[]]],[]],[]] => 0
[[],[[[[]],[]],[]],[]] => 0
[[],[[[[],[]]],[]],[]] => 1
[[],[[[[[]]]],[]],[]] => 1
[[],[[[],[],[],[]]],[]] => 1
[[],[[[],[],[[]]]],[]] => 1
[[],[[[],[[]],[]]],[]] => 1
[[],[[[],[[],[]]]],[]] => 1
[[],[[[],[[[]]]]],[]] => 2
[[],[[[[]],[],[]]],[]] => 1
[[],[[[[]],[[]]]],[]] => 1
[[],[[[[],[]],[]]],[]] => 1
[[],[[[[[]]],[]]],[]] => 2
[[],[[[[],[],[]]]],[]] => 1
[[],[[[[],[[]]]]],[]] => 1
[[],[[[[[]],[]]]],[]] => 1
[[],[[[[[],[]]]]],[]] => 1
[[],[[[[[[]]]]]],[]] => 1
[[],[[],[],[],[],[],[]]] => 0
[[],[[],[],[],[],[[]]]] => 0
[[],[[],[],[],[[]],[]]] => 0
[[],[[],[],[],[[],[]]]] => 0
[[],[[],[],[],[[[]]]]] => 1
[[],[[],[],[[]],[],[]]] => 0
[[],[[],[],[[]],[[]]]] => 0
[[],[[],[],[[],[]],[]]] => 0
[[],[[],[],[[[]]],[]]] => 1
[[],[[],[],[[],[],[]]]] => 0
[[],[[],[],[[],[[]]]]] => 0
[[],[[],[],[[[]],[]]]] => 0
[[],[[],[],[[[],[]]]]] => 1
[[],[[],[],[[[[]]]]]] => 1
[[],[[],[[]],[],[],[]]] => 0
[[],[[],[[]],[],[[]]]] => 0
[[],[[],[[]],[[]],[]]] => 0
[[],[[],[[]],[[],[]]]] => 0
[[],[[],[[]],[[[]]]]] => 1
[[],[[],[[],[]],[],[]]] => 0
[[],[[],[[[]]],[],[]]] => 1
[[],[[],[[],[]],[[]]]] => 0
[[],[[],[[[]]],[[]]]] => 1
[[],[[],[[],[],[]],[]]] => 0
[[],[[],[[],[[]]],[]]] => 0
[[],[[],[[[]],[]],[]]] => 0
[[],[[],[[[],[]]],[]]] => 1
[[],[[],[[[[]]]],[]]] => 1
[[],[[],[[],[],[],[]]]] => 0
[[],[[],[[],[],[[]]]]] => 0
[[],[[],[[],[[]],[]]]] => 0
[[],[[],[[],[[],[]]]]] => 0
[[],[[],[[],[[[]]]]]] => 1
[[],[[],[[[]],[],[]]]] => 0
[[],[[],[[[]],[[]]]]] => 1
[[],[[],[[[],[]],[]]]] => 0
[[],[[],[[[[]]],[]]]] => 1
[[],[[],[[[],[],[]]]]] => 1
[[],[[],[[[],[[]]]]]] => 1
[[],[[],[[[[]],[]]]]] => 1
[[],[[],[[[[],[]]]]]] => 1
[[],[[],[[[[[]]]]]]] => 1
[[],[[[]],[],[],[],[]]] => 0
[[],[[[]],[],[],[[]]]] => 0
[[],[[[]],[],[[]],[]]] => 0
[[],[[[]],[],[[],[]]]] => 0
[[],[[[]],[],[[[]]]]] => 1
[[],[[[]],[[]],[],[]]] => 0
[[],[[[]],[[]],[[]]]] => 1
[[],[[[]],[[],[]],[]]] => 0
[[],[[[]],[[[]]],[]]] => 1
[[],[[[]],[[],[],[]]]] => 1
[[],[[[]],[[],[[]]]]] => 1
[[],[[[]],[[[]],[]]]] => 1
[[],[[[]],[[[],[]]]]] => 2
[[],[[[]],[[[[]]]]]] => 2
[[],[[[],[]],[],[],[]]] => 0
[[],[[[[]]],[],[],[]]] => 1
[[],[[[],[]],[],[[]]]] => 0
[[],[[[[]]],[],[[]]]] => 1
[[],[[[],[]],[[]],[]]] => 0
[[],[[[[]]],[[]],[]]] => 1
[[],[[[],[]],[[],[]]]] => 1
[[],[[[],[]],[[[]]]]] => 2
[[],[[[[]]],[[],[]]]] => 2
[[],[[[[]]],[[[]]]]] => 2
[[],[[[],[],[]],[],[]]] => 0
[[],[[[],[[]]],[],[]]] => 0
[[],[[[[]],[]],[],[]]] => 0
[[],[[[[],[]]],[],[]]] => 1
[[],[[[[[]]]],[],[]]] => 1
[[],[[[],[],[]],[[]]]] => 1
[[],[[[],[[]]],[[]]]] => 1
[[],[[[[]],[]],[[]]]] => 1
[[],[[[[],[]]],[[]]]] => 2
[[],[[[[[]]]],[[]]]] => 2
[[],[[[],[],[],[]],[]]] => 0
[[],[[[],[],[[]]],[]]] => 0
[[],[[[],[[]],[]],[]]] => 0
[[],[[[],[[],[]]],[]]] => 0
[[],[[[],[[[]]]],[]]] => 1
[[],[[[[]],[],[]],[]]] => 0
[[],[[[[]],[[]]],[]]] => 1
[[],[[[[],[]],[]],[]]] => 0
[[],[[[[[]]],[]],[]]] => 1
[[],[[[[],[],[]]],[]]] => 1
[[],[[[[],[[]]]],[]]] => 1
[[],[[[[[]],[]]],[]]] => 1
[[],[[[[[],[]]]],[]]] => 1
[[],[[[[[[]]]]],[]]] => 1
[[],[[[],[],[],[],[]]]] => 1
[[],[[[],[],[],[[]]]]] => 1
[[],[[[],[],[[]],[]]]] => 1
[[],[[[],[],[[],[]]]]] => 1
[[],[[[],[],[[[]]]]]] => 2
[[],[[[],[[]],[],[]]]] => 1
[[],[[[],[[]],[[]]]]] => 1
[[],[[[],[[],[]],[]]]] => 1
[[],[[[],[[[]]],[]]]] => 2
[[],[[[],[[],[],[]]]]] => 1
[[],[[[],[[],[[]]]]]] => 1
[[],[[[],[[[]],[]]]]] => 1
[[],[[[],[[[],[]]]]]] => 2
[[],[[[],[[[[]]]]]]] => 2
[[],[[[[]],[],[],[]]]] => 1
[[],[[[[]],[],[[]]]]] => 1
[[],[[[[]],[[]],[]]]] => 1
[[],[[[[]],[[],[]]]]] => 1
[[],[[[[]],[[[]]]]]] => 2
[[],[[[[],[]],[],[]]]] => 1
[[],[[[[[]]],[],[]]]] => 2
[[],[[[[],[]],[[]]]]] => 1
[[],[[[[[]]],[[]]]]] => 2
[[],[[[[],[],[]],[]]]] => 1
[[],[[[[],[[]]],[]]]] => 1
[[],[[[[[]],[]],[]]]] => 1
[[],[[[[[],[]]],[]]]] => 2
[[],[[[[[[]]]],[]]]] => 2
[[],[[[[],[],[],[]]]]] => 1
[[],[[[[],[],[[]]]]]] => 1
[[],[[[[],[[]],[]]]]] => 1
[[],[[[[],[[],[]]]]]] => 1
[[],[[[[],[[[]]]]]]] => 2
[[],[[[[[]],[],[]]]]] => 1
[[],[[[[[]],[[]]]]]] => 1
[[],[[[[[],[]],[]]]]] => 1
[[],[[[[[[]]],[]]]]] => 2
[[],[[[[[],[],[]]]]]] => 1
[[],[[[[[],[[]]]]]]] => 1
[[],[[[[[[]],[]]]]]] => 1
[[],[[[[[[],[]]]]]]] => 1
[[],[[[[[[[]]]]]]]] => 1
[[[]],[],[],[],[],[],[]] => 0
[[[]],[],[],[],[],[[]]] => 0
[[[]],[],[],[],[[]],[]] => 0
[[[]],[],[],[],[[],[]]] => 0
[[[]],[],[],[],[[[]]]] => 1
[[[]],[],[],[[]],[],[]] => 0
[[[]],[],[],[[]],[[]]] => 0
[[[]],[],[],[[],[]],[]] => 0
[[[]],[],[],[[[]]],[]] => 1
[[[]],[],[],[[],[],[]]] => 0
[[[]],[],[],[[],[[]]]] => 0
[[[]],[],[],[[[]],[]]] => 0
[[[]],[],[],[[[],[]]]] => 1
[[[]],[],[],[[[[]]]]] => 1
[[[]],[],[[]],[],[],[]] => 0
[[[]],[],[[]],[],[[]]] => 0
[[[]],[],[[]],[[]],[]] => 0
[[[]],[],[[]],[[],[]]] => 0
[[[]],[],[[]],[[[]]]] => 1
[[[]],[],[[],[]],[],[]] => 0
[[[]],[],[[[]]],[],[]] => 1
[[[]],[],[[],[]],[[]]] => 0
[[[]],[],[[[]]],[[]]] => 1
[[[]],[],[[],[],[]],[]] => 0
[[[]],[],[[],[[]]],[]] => 0
[[[]],[],[[[]],[]],[]] => 0
[[[]],[],[[[],[]]],[]] => 1
[[[]],[],[[[[]]]],[]] => 1
[[[]],[],[[],[],[],[]]] => 0
[[[]],[],[[],[],[[]]]] => 0
[[[]],[],[[],[[]],[]]] => 0
[[[]],[],[[],[[],[]]]] => 0
[[[]],[],[[],[[[]]]]] => 1
[[[]],[],[[[]],[],[]]] => 0
[[[]],[],[[[]],[[]]]] => 1
[[[]],[],[[[],[]],[]]] => 0
[[[]],[],[[[[]]],[]]] => 1
[[[]],[],[[[],[],[]]]] => 1
[[[]],[],[[[],[[]]]]] => 1
[[[]],[],[[[[]],[]]]] => 1
[[[]],[],[[[[],[]]]]] => 1
[[[]],[],[[[[[]]]]]] => 1
[[[]],[[]],[],[],[],[]] => 0
[[[]],[[]],[],[],[[]]] => 0
[[[]],[[]],[],[[]],[]] => 0
[[[]],[[]],[],[[],[]]] => 0
[[[]],[[]],[],[[[]]]] => 1
[[[]],[[]],[[]],[],[]] => 0
[[[]],[[]],[[]],[[]]] => 1
[[[]],[[]],[[],[]],[]] => 0
[[[]],[[]],[[[]]],[]] => 1
[[[]],[[]],[[],[],[]]] => 1
[[[]],[[]],[[],[[]]]] => 1
[[[]],[[]],[[[]],[]]] => 1
[[[]],[[]],[[[],[]]]] => 2
[[[]],[[]],[[[[]]]]] => 2
[[[]],[[],[]],[],[],[]] => 0
[[[]],[[[]]],[],[],[]] => 1
[[[]],[[],[]],[],[[]]] => 0
[[[]],[[[]]],[],[[]]] => 1
[[[]],[[],[]],[[]],[]] => 0
[[[]],[[[]]],[[]],[]] => 1
[[[]],[[],[]],[[],[]]] => 1
[[[]],[[],[]],[[[]]]] => 2
[[[]],[[[]]],[[],[]]] => 2
[[[]],[[[]]],[[[]]]] => 3
[[[]],[[],[],[]],[],[]] => 0
[[[]],[[],[[]]],[],[]] => 0
[[[]],[[[]],[]],[],[]] => 0
[[[]],[[[],[]]],[],[]] => 1
[[[]],[[[[]]]],[],[]] => 1
[[[]],[[],[],[]],[[]]] => 1
[[[]],[[],[[]]],[[]]] => 1
[[[]],[[[]],[]],[[]]] => 1
[[[]],[[[],[]]],[[]]] => 2
[[[]],[[[[]]]],[[]]] => 2
[[[]],[[],[],[],[]],[]] => 0
[[[]],[[],[],[[]]],[]] => 0
[[[]],[[],[[]],[]],[]] => 0
[[[]],[[],[[],[]]],[]] => 0
[[[]],[[],[[[]]]],[]] => 1
[[[]],[[[]],[],[]],[]] => 0
[[[]],[[[]],[[]]],[]] => 1
[[[]],[[[],[]],[]],[]] => 0
[[[]],[[[[]]],[]],[]] => 1
[[[]],[[[],[],[]]],[]] => 1
[[[]],[[[],[[]]]],[]] => 1
[[[]],[[[[]],[]]],[]] => 1
[[[]],[[[[],[]]]],[]] => 1
[[[]],[[[[[]]]]],[]] => 1
[[[]],[[],[],[],[],[]]] => 1
[[[]],[[],[],[],[[]]]] => 1
[[[]],[[],[],[[]],[]]] => 1
[[[]],[[],[],[[],[]]]] => 1
[[[]],[[],[],[[[]]]]] => 2
[[[]],[[],[[]],[],[]]] => 1
[[[]],[[],[[]],[[]]]] => 1
[[[]],[[],[[],[]],[]]] => 1
[[[]],[[],[[[]]],[]]] => 2
[[[]],[[],[[],[],[]]]] => 1
[[[]],[[],[[],[[]]]]] => 1
[[[]],[[],[[[]],[]]]] => 1
[[[]],[[],[[[],[]]]]] => 2
[[[]],[[],[[[[]]]]]] => 2
[[[]],[[[]],[],[],[]]] => 1
[[[]],[[[]],[],[[]]]] => 1
[[[]],[[[]],[[]],[]]] => 1
[[[]],[[[]],[[],[]]]] => 2
[[[]],[[[]],[[[]]]]] => 3
[[[]],[[[],[]],[],[]]] => 1
[[[]],[[[[]]],[],[]]] => 2
[[[]],[[[],[]],[[]]]] => 2
[[[]],[[[[]]],[[]]]] => 3
[[[]],[[[],[],[]],[]]] => 1
[[[]],[[[],[[]]],[]]] => 1
[[[]],[[[[]],[]],[]]] => 1
[[[]],[[[[],[]]],[]]] => 2
[[[]],[[[[[]]]],[]]] => 2
[[[]],[[[],[],[],[]]]] => 2
[[[]],[[[],[],[[]]]]] => 2
[[[]],[[[],[[]],[]]]] => 2
[[[]],[[[],[[],[]]]]] => 2
[[[]],[[[],[[[]]]]]] => 3
[[[]],[[[[]],[],[]]]] => 2
[[[]],[[[[]],[[]]]]] => 2
[[[]],[[[[],[]],[]]]] => 2
[[[]],[[[[[]]],[]]]] => 3
[[[]],[[[[],[],[]]]]] => 2
[[[]],[[[[],[[]]]]]] => 2
[[[]],[[[[[]],[]]]]] => 2
[[[]],[[[[[],[]]]]]] => 2
[[[]],[[[[[[]]]]]]] => 2
[[[],[]],[],[],[],[],[]] => 0
[[[[]]],[],[],[],[],[]] => 1
[[[],[]],[],[],[],[[]]] => 0
[[[[]]],[],[],[],[[]]] => 1
[[[],[]],[],[],[[]],[]] => 0
[[[[]]],[],[],[[]],[]] => 1
[[[],[]],[],[],[[],[]]] => 0
[[[],[]],[],[],[[[]]]] => 1
[[[[]]],[],[],[[],[]]] => 1
[[[[]]],[],[],[[[]]]] => 2
[[[],[]],[],[[]],[],[]] => 0
[[[[]]],[],[[]],[],[]] => 1
[[[],[]],[],[[]],[[]]] => 0
[[[[]]],[],[[]],[[]]] => 1
[[[],[]],[[],[[],[]]]] => 1
[[[],[]],[[[],[]],[]]] => 1
[[[],[[],[]]],[[],[]]] => 1
[[[[],[]],[]],[[],[]]] => 1
[[[],[[],[[],[]]]],[]] => 0
[[[],[[[],[]],[]]],[]] => 0
[[[[],[]],[[],[]]],[]] => 1
[[[[],[[],[]]],[]],[]] => 0
[[[[[],[]],[]],[]],[]] => 0
[[[[[],[[[]]]]]],[]] => 2
[[[[[[[]]],[]]]],[]] => 2
[[[[[[],[],[]]]]],[]] => 1
[[[[[[],[[]]]]]],[]] => 1
[[[[[[[]],[]]]]],[]] => 1
[[[[[[[],[]]]]]],[]] => 1
[[[[[[[[]]]]]]],[]] => 1
[[[[[[[[[]]]]]]]],[]] => 1
[[],[[[[[[[[]]]]]]]]] => 1
[[[[[[[[],[]]]]]]],[]] => 1
[[],[[[[[[[],[]]]]]]]] => 1
[[[[[[[[]],[]]]]]],[]] => 1
[[[[[[[],[[]]]]]]],[]] => 1
[[],[[[[[[[]],[]]]]]]] => 1
[[],[[[[[[],[[]]]]]]]] => 1
[[],[[],[[],[[],[[],[]]]]]] => 0
[[],[[],[[],[[[],[]],[]]]]] => 0
[[],[[],[[[],[]],[[],[]]]]] => 1
[[],[[],[[[],[[],[]]],[]]]] => 0
[[],[[],[[[[],[]],[]],[]]]] => 0
[[],[[[],[]],[[],[[],[]]]]] => 1
[[],[[[],[]],[[[],[]],[]]]] => 1
[[],[[[],[[],[]]],[[],[]]]] => 1
[[],[[[[],[]],[]],[[],[]]]] => 1
[[],[[[],[[],[[],[]]]],[]]] => 0
[[],[[[],[[[],[]],[]]],[]]] => 0
[[],[[[[],[]],[[],[]]],[]]] => 1
[[],[[[[],[[],[]]],[]],[]]] => 0
[[],[[[[[],[]],[]],[]],[]]] => 0
[[[],[]],[[],[[],[[],[]]]]] => 1
[[[],[]],[[],[[[],[]],[]]]] => 1
[[[],[]],[[[],[]],[[],[]]]] => 2
[[[],[]],[[[],[[],[]]],[]]] => 1
[[[],[]],[[[[],[]],[]],[]]] => 1
[[[],[[],[]]],[[],[[],[]]]] => 1
[[[],[[],[]]],[[[],[]],[]]] => 1
[[[[],[]],[]],[[],[[],[]]]] => 1
[[[[],[]],[]],[[[],[]],[]]] => 1
[[[],[[],[[],[]]]],[[],[]]] => 1
[[[],[[[],[]],[]]],[[],[]]] => 1
[[[[],[]],[[],[]]],[[],[]]] => 2
[[[[],[[],[]]],[]],[[],[]]] => 1
[[[[[],[]],[]],[]],[[],[]]] => 1
[[[],[[],[[],[[],[]]]]],[]] => 0
[[[],[[],[[[],[]],[]]]],[]] => 0
[[[],[[[],[]],[[],[]]]],[]] => 1
[[[],[[[],[[],[]]],[]]],[]] => 0
[[[],[[[[],[]],[]],[]]],[]] => 0
[[[[],[]],[[],[[],[]]]],[]] => 1
[[[[],[]],[[[],[]],[]]],[]] => 1
[[[[],[[],[]]],[[],[]]],[]] => 1
[[[[[],[]],[]],[[],[]]],[]] => 1
[[[[],[[],[[],[]]]],[]],[]] => 0
[[[[],[[[],[]],[]]],[]],[]] => 0
[[[[[],[]],[[],[]]],[]],[]] => 1
[[[[[],[[],[]]],[]],[]],[]] => 0
[[[[[[],[]],[]],[]],[]],[]] => 0
[[[[[[[[[[]]]]]]]]],[]] => 1
[[],[[[[[[[[[]]]]]]]]]] => 1
[[[[[[[[[],[]]]]]]]],[]] => 1
[[],[[[[[[[[],[]]]]]]]]] => 1
[[[[[[[[[[[]]]]]]]]]],[]] => 1
[[],[[[[[[[[[[]]]]]]]]]]] => 1
[[],[[],[[],[[],[[],[[],[]]]]]]] => 0
[[],[[],[[],[[],[[[],[]],[]]]]]] => 0
[[],[[],[[],[[[],[]],[[],[]]]]]] => 1
[[],[[],[[],[[[],[[],[]]],[]]]]] => 0
[[],[[],[[],[[[[],[]],[]],[]]]]] => 0
[[],[[],[[[],[]],[[],[[],[]]]]]] => 1
[[],[[],[[[],[]],[[[],[]],[]]]]] => 1
[[],[[],[[[],[[],[]]],[[],[]]]]] => 1
[[],[[],[[[[],[]],[]],[[],[]]]]] => 1
[[],[[],[[[],[[],[[],[]]]],[]]]] => 0
[[],[[],[[[],[[[],[]],[]]],[]]]] => 0
[[],[[],[[[[],[]],[[],[]]],[]]]] => 1
[[],[[],[[[[],[[],[]]],[]],[]]]] => 0
[[],[[],[[[[[],[]],[]],[]],[]]]] => 0
[[],[[[],[]],[[],[[],[[],[]]]]]] => 1
[[],[[[],[]],[[],[[[],[]],[]]]]] => 1
[[],[[[],[]],[[[],[]],[[],[]]]]] => 2
[[],[[[],[]],[[[],[[],[]]],[]]]] => 1
[[],[[[],[]],[[[[],[]],[]],[]]]] => 1
[[],[[[],[[],[]]],[[],[[],[]]]]] => 1
[[],[[[],[[],[]]],[[[],[]],[]]]] => 1
[[],[[[[],[]],[]],[[],[[],[]]]]] => 1
[[],[[[[],[]],[]],[[[],[]],[]]]] => 1
[[],[[[],[[],[[],[]]]],[[],[]]]] => 1
[[],[[[],[[[],[]],[]]],[[],[]]]] => 1
[[],[[[[],[]],[[],[]]],[[],[]]]] => 2
[[],[[[[],[[],[]]],[]],[[],[]]]] => 1
[[],[[[[[],[]],[]],[]],[[],[]]]] => 1
[[],[[[],[[],[[],[[],[]]]]],[]]] => 0
[[],[[[],[[],[[[],[]],[]]]],[]]] => 0
[[],[[[],[[[],[]],[[],[]]]],[]]] => 1
[[],[[[],[[[],[[],[]]],[]]],[]]] => 0
[[],[[[],[[[[],[]],[]],[]]],[]]] => 0
[[],[[[[],[]],[[],[[],[]]]],[]]] => 1
[[],[[[[],[]],[[[],[]],[]]],[]]] => 1
[[],[[[[],[[],[]]],[[],[]]],[]]] => 1
[[],[[[[[],[]],[]],[[],[]]],[]]] => 1
[[],[[[[],[[],[[],[]]]],[]],[]]] => 0
[[],[[[[],[[[],[]],[]]],[]],[]]] => 0
[[],[[[[[],[]],[[],[]]],[]],[]]] => 1
[[],[[[[[],[[],[]]],[]],[]],[]]] => 0
[[],[[[[[[],[]],[]],[]],[]],[]]] => 0
[[[],[]],[[],[[],[[],[[],[]]]]]] => 1
[[[],[]],[[],[[],[[[],[]],[]]]]] => 1
[[[],[]],[[],[[[],[]],[[],[]]]]] => 2
[[[],[]],[[],[[[],[[],[]]],[]]]] => 1
[[[],[]],[[],[[[[],[]],[]],[]]]] => 1
[[[],[]],[[[],[]],[[],[[],[]]]]] => 2
[[[],[]],[[[],[]],[[[],[]],[]]]] => 2
[[[],[]],[[[],[[],[]]],[[],[]]]] => 2
[[[],[]],[[[[],[]],[]],[[],[]]]] => 2
[[[],[]],[[[],[[],[[],[]]]],[]]] => 1
[[[],[]],[[[],[[[],[]],[]]],[]]] => 1
[[[],[]],[[[[],[]],[[],[]]],[]]] => 2
[[[],[]],[[[[],[[],[]]],[]],[]]] => 1
[[[],[]],[[[[[],[]],[]],[]],[]]] => 1
[[[],[[],[]]],[[],[[],[[],[]]]]] => 1
[[[],[[],[]]],[[],[[[],[]],[]]]] => 1
[[[],[[],[]]],[[[],[]],[[],[]]]] => 2
[[[],[[],[]]],[[[],[[],[]]],[]]] => 1
[[[],[[],[]]],[[[[],[]],[]],[]]] => 1
[[[[],[]],[]],[[],[[],[[],[]]]]] => 1
[[[[],[]],[]],[[],[[[],[]],[]]]] => 1
[[[[],[]],[]],[[[],[]],[[],[]]]] => 2
[[[[],[]],[]],[[[],[[],[]]],[]]] => 1
[[[[],[]],[]],[[[[],[]],[]],[]]] => 1
[[[],[[],[[],[]]]],[[],[[],[]]]] => 1
[[[],[[],[[],[]]]],[[[],[]],[]]] => 1
[[[],[[[],[]],[]]],[[],[[],[]]]] => 1
[[[],[[[],[]],[]]],[[[],[]],[]]] => 1
[[[[],[]],[[],[]]],[[],[[],[]]]] => 2
[[[[],[]],[[],[]]],[[[],[]],[]]] => 2
[[[[],[[],[]]],[]],[[],[[],[]]]] => 1
[[[[],[[],[]]],[]],[[[],[]],[]]] => 1
[[[[[],[]],[]],[]],[[],[[],[]]]] => 1
[[[[[],[]],[]],[]],[[[],[]],[]]] => 1
[[[],[[],[[],[[],[]]]]],[[],[]]] => 1
[[[],[[],[[[],[]],[]]]],[[],[]]] => 1
[[[],[[[],[]],[[],[]]]],[[],[]]] => 2
[[[],[[[],[[],[]]],[]]],[[],[]]] => 1
[[[],[[[[],[]],[]],[]]],[[],[]]] => 1
[[[[],[]],[[],[[],[]]]],[[],[]]] => 2
[[[[],[]],[[[],[]],[]]],[[],[]]] => 2
[[[[],[[],[]]],[[],[]]],[[],[]]] => 2
[[[[[],[]],[]],[[],[]]],[[],[]]] => 2
[[[[],[[],[[],[]]]],[]],[[],[]]] => 1
[[[[],[[[],[]],[]]],[]],[[],[]]] => 1
[[[[[],[]],[[],[]]],[]],[[],[]]] => 2
[[[[[],[[],[]]],[]],[]],[[],[]]] => 1
[[[[[[],[]],[]],[]],[]],[[],[]]] => 1
[[[],[[],[[],[[],[[],[]]]]]],[]] => 0
[[[],[[],[[],[[[],[]],[]]]]],[]] => 0
[[[],[[],[[[],[]],[[],[]]]]],[]] => 1
[[[],[[],[[[],[[],[]]],[]]]],[]] => 0
[[[],[[],[[[[],[]],[]],[]]]],[]] => 0
[[[],[[[],[]],[[],[[],[]]]]],[]] => 1
[[[],[[[],[]],[[[],[]],[]]]],[]] => 1
[[[],[[[],[[],[]]],[[],[]]]],[]] => 1
[[[],[[[[],[]],[]],[[],[]]]],[]] => 1
[[[],[[[],[[],[[],[]]]],[]]],[]] => 0
[[[],[[[],[[[],[]],[]]],[]]],[]] => 0
[[[],[[[[],[]],[[],[]]],[]]],[]] => 1
[[[],[[[[],[[],[]]],[]],[]]],[]] => 0
[[[],[[[[[],[]],[]],[]],[]]],[]] => 0
[[[[],[]],[[],[[],[[],[]]]]],[]] => 1
[[[[],[]],[[],[[[],[]],[]]]],[]] => 1
[[[[],[]],[[[],[]],[[],[]]]],[]] => 2
[[[[],[]],[[[],[[],[]]],[]]],[]] => 1
[[[[],[]],[[[[],[]],[]],[]]],[]] => 1
[[[[],[[],[]]],[[],[[],[]]]],[]] => 1
[[[[],[[],[]]],[[[],[]],[]]],[]] => 1
[[[[[],[]],[]],[[],[[],[]]]],[]] => 1
[[[[[],[]],[]],[[[],[]],[]]],[]] => 1
[[[[],[[],[[],[]]]],[[],[]]],[]] => 1
[[[[],[[[],[]],[]]],[[],[]]],[]] => 1
[[[[[],[]],[[],[]]],[[],[]]],[]] => 2
[[[[[],[[],[]]],[]],[[],[]]],[]] => 1
[[[[[[],[]],[]],[]],[[],[]]],[]] => 1
[[[[],[[],[[],[[],[]]]]],[]],[]] => 0
[[[[],[[],[[[],[]],[]]]],[]],[]] => 0
[[[[],[[[],[]],[[],[]]]],[]],[]] => 1
[[[[],[[[],[[],[]]],[]]],[]],[]] => 0
[[[[],[[[[],[]],[]],[]]],[]],[]] => 0
[[[[[],[]],[[],[[],[]]]],[]],[]] => 1
[[[[[],[]],[[[],[]],[]]],[]],[]] => 1
[[[[[],[[],[]]],[[],[]]],[]],[]] => 1
[[[[[[],[]],[]],[[],[]]],[]],[]] => 1
[[[[[],[[],[[],[]]]],[]],[]],[]] => 0
[[[[[],[[[],[]],[]]],[]],[]],[]] => 0
[[[[[[],[]],[[],[]]],[]],[]],[]] => 1
[[[[[[],[[],[]]],[]],[]],[]],[]] => 0
[[[[[[[],[]],[]],[]],[]],[]],[]] => 0
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Created: Jun 02, 2016 at 09:40 by Martin Rubey
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Last Updated: Dec 26, 2017 at 10:04 by Martin Rubey