8
0, 1, 32.0
0, 2, 29.0
0, 5, 60.0
0, 6, 51.0
0, 7, 31.0
1, 7, 21.0
3, 4, 34.0
3, 5, 18.0
4, 5, 40.0
4, 6, 51.0
4, 7, 46.0
6, 7, 25.0