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