1

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