5 5
12
0 0 19.0
1 0 12.0
4 0 12.0
1 1 21.0
2 1 12.0
4 1 12.0
0 2 21.0
2 2 16.0
0 3 21.0
3 3 5.0
3 4 21.0
4 4 18.0
5
0 1.0
1 1.0
2 1.0
3 1.0
4 1.0
