[1, 8, 2, 9, 3, 4, 7, 6, 5]
[5, 6, 7, 4, 3, 1, 8, 2]
[2, 5, 6, 7, 4, 3, 1]
[1, 3, 4, 2, 5, 6]
[2, 1, 3]
[1]
12
6 10 3 9 6 8 3 7 2 4 0 2