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