[4, [2]]
[4, [2]]
[4, [2]]
[0]
[12, [2], [3]]
[2, [1]]
[8, [3]]
[0]
[4, [2]]
[28, [2, 3, 4]]
[4, [2]]
[4, [2]]
[4, [2]]
[4, [2]]
[16, [4]]
[2, [1]]
[12, [2, 3]]
[0]
[10, [1], [3]]
[28, [2, 4], [3]]
32