10 12 2
0 4
9 0
2 0
1 5
1 4
1 9
2 8
9 2
3 5
5 6
7 6
8 7
0 0 
0 1 
1 0 
0 0 
1 1 
1 0 
1 1 
0 1 
0 0 
1 0 
2 2 
2 4 
5 3 
1 2 
6 2 
5 2 
2 3 
2 2 
2 1 
7 2