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