18
1 2 23.5
3 4 25
2 3 25.5
1 4 25.5
5 6 42.5
7 8 30.5
8 1 31.75
7 2 31.75
8 3 24
7 4 24
8 2 41.5
7 1 41.5
8 4 36.5
7 3 36.5
17 18 43
15 16 42
16 18 45.5
17 15 45.5
1 5 12.5
2 6 12.5
3 5 18.5
4 6 18.3
11 6 63
12 5 63
15 6 71
16 5 71
9 10 38
13 14 42.5
11 12 41
9 12 48
10 11 48
13 15 42.5
14 16 42.5
8 9 72.0