16 28
1 2 -0.7578125
2 3 0.9296875
1 4 -0.4921875
3 4 0.3203125
1 5 0.78125
2 6 -0.7109375
5 6 -0.671875
3 7 0.125
6 7 -0.7109375
4 8 -0.75
5 8 -0.1328125
7 8 0.2109375
5 9 -0.2265625
6 10 -0.7109375
9 10 -0.96875
7 11 -0.078125
10 11 -0.65625
8 12 -0.1640625
9 12 0.828125
11 12 0.1328125
9 13 0.59375
10 14 0.1796875
13 14 -0.984375
11 15 0.5625
14 15 -0.8046875
12 16 -0.2734375
13 16 0.796875
15 16 -0.8046875