[[2]]
[[2],[[10,0],[[3,8,7,1]],[[8,6,9],[8,7,10,10],0,[1,1,6,6,8]],[[],0]]]

[[[2],0,[[5,10,10],0,8,[2,5,1]],[5,[1,9,5,2,7],9,7],7],[],[10,[],1],[[[6,10,10,0],3,[8],6],[]]]
[[[2],[[5]],[],9],[[[8,6,4,6],[7,4]],[6],3,[4,[10,2],5,[2,4,0]]],[[3,10]]]

[[2],[9,6],[[[2],5,0],[],[10,1],[7,[7,7,5]]],[[6,[2,10],3,[1,10,6,5],5],[1,[2,10,7,10],4]]]
[[2],[5],[2],[6],[4,0]]