7
0 0.0 0.0
1 5.0 1.0
2 2.0 5.0
3 5.0 5.0
4 10.0 0.0
5 0.0 10.0
6 20.0 20.0
10
0 1 30
0 3 10
0 2 15
1 3 25
1 4 60
2 3 40
2 5 20
3 6 35
4 6 20
5 6 30
0 6