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