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