2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
2 1
2 0
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 53 16 
53 0 15 
16 15 0