10
2 5 9 1 3 8 7 4 0 6

0 1 2 3 4 5 6 7 8 9
0 -> 2 -> 9 -> 6 -> 7 -> 4 -> 3 -> 1 -> 5 -> 8 -> 0

12
1 2 3 4 5 6 7 8 9 10 11 12