0 [2, 1, 1, 1, 2]
0 [1, 1, 1, 2]
3 [1, 1, 1]
4 [2, 1, 1, 1]
0 [1, 1, 1]
1 [4, 1, 1, 2]
0 [1, 1, 2]
2 [1, 1]
3 [4, 1, 1]
0 [1, 1]
5 [3, 2, 1, 1, 1]
0 [2, 1, 1, 1]
0 [1, 1, 1]
1 [4, 1, 1]
0 [1, 1]
QAQ