[[0, -1, 6, 4, -1, 2, -1, 2, 2, 4, 3, 5, 3, 1, 3, 1, 5, -1, 5, 3], [-1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1], [6, -1, 0, 4, -1, 6, -1, 4, 4, 2, 5, 1, 5, 5, 3, 5, 5, -1, 3, 3], [4, -1, 4, 0, -1, 4, -1, 2, 2, 2, 1, 3, 1, 3, 3, 3, 1, -1, 3, 1], [-1, -1, -1, -1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1], [2, -1, 6, 4, -1, 0, -1, 4, 2, 4, 3, 5, 5, 3, 3, 1, 5, -1, 5, 5], [-1, -1, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, -1], [2, -1, 4, 2, -1, 4, -1, 0, 4, 2, 3, 3, 1, 1, 3, 3, 3, -1, 3, 1], [2, -1, 4, 2, -1, 2, -1, 4, 0, 2, 1, 3, 3, 3, 1, 1, 3, -1, 3, 3], [4, -1, 2, 2, -1, 4, -1, 2, 2, 0, 3, 1, 3, 3, 1, 3, 3, -1, 1, 1], [3, -1, 5, 1, -1, 3, -1, 3, 1, 3, 0, 4, 2, 4, 2, 2, 2, -1, 4, 2], [5, -1, 1, 3, -1, 5, -1, 3, 3, 1, 4, 0, 4, 4, 2, 4, 4, -1, 2, 2], [3, -1, 5, 1, -1, 5, -1, 1, 3, 3, 2, 4, 0, 2, 4, 4, 2, -1, 4, 2], [1, -1, 5, 3, -1, 3, -1, 1, 3, 3, 4, 4, 2, 0, 4, 2, 4, -1, 4, 2], [3, -1, 3, 3, -1, 3, -1, 3, 1, 1, 2, 2, 4, 4, 0, 2, 4, -1, 2, 2], [1, -1, 5, 3, -1, 1, -1, 3, 1, 3, 2, 4, 4, 2, 2, 0, 4, -1, 4, 4], [5, -1, 5, 1, -1, 5, -1, 3, 3, 3, 2, 4, 2, 4, 4, 4, 0, -1, 4, 2], [-1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, -1], [5, -1, 3, 3, -1, 5, -1, 3, 3, 1, 4, 2, 4, 4, 2, 4, 4, -1, 0, 2], [3, -1, 3, 1, -1, 5, -1, 1, 3, 1, 2, 2, 2, 2, 2, 4, 2, -1, 2, 0]]
{0: 10, 1: 11, 2: 12, 3: 13, 4: 14, 5: 15, 6: 16, 7: 17, 8: 18, 9: 19}
3
3
1
3
3
1
-1
2
1
1