5 5 2
0 1
0 3
4 1
1 3
4 2
0 0 
0 0 
0 1 
0 1 
0 1 
0 1 
0 2 
0 1 
0 0 
0 1 
0 2 
0 2 
0 1 
0 3 
0 3