1

9
0: 0: 0 7
1: 1: 7 1
2: 2: 1 0
3: 3: 6 1
4: 4: 1 1
5: 5: 4 3
6: 6: 2 3
7: 7: 2 4
8: 8: 1 4
0 1 0 0 0 0 0 0 1
1 0 1 0 0 0 0 0 0
0 1 0 1 0 0 0 0 0
0 0 1 0 1 0 0 0 0
0 0 0 1 0 1 0 0 0
0 0 0 0 1 0 1 0 0
0 0 0 0 0 1 0 1 0
0 0 0 0 0 0 1 0 1
1 0 0 0 0 0 0 1 0