25 45
1 2 -0.3984375
2 3 0.3515625
3 4 0.3046875
1 5 -0.0703125
4 5 0.9921875
1 6 0.9609375
2 7 -0.3671875
6 7 -0.8359375
3 8 -0.4375
7 8 0.4140625
4 9 -0.546875
8 9 -0.03125
5 10 -0.015625
6 10 0.390625
9 10 0.0078125
6 11 0.8203125
7 12 0.6875
11 12 -0.4375
8 13 -0.5703125
12 13 0.171875
9 14 0.3984375
13 14 -0.171875
10 15 -0.078125
11 15 0.5234375
14 15 -0.578125
11 16 0.4609375
12 17 -0.9765625
16 17 -0.3046875
13 18 0.8125
17 18 -0.984375
14 19 0.859375
18 19 -0.8046875
15 20 0.7421875
16 20 -0.4609375
19 20 0.4453125
16 21 0.4375
17 22 -0.4375
21 22 -0.5234375
18 23 0.453125
22 23 -0.3671875
19 24 0.8203125
23 24 0.921875
20 25 -0.2890625
21 25 0.6875
24 25 0.2421875