25 45
1 2 -0.2890625
2 3 0.90625
3 4 0.1328125
1 5 0.109375
4 5 0.7890625
1 6 0.078125
2 7 0.984375
6 7 -0.875
3 8 -0.7890625
7 8 -0.09375
4 9 0.125
8 9 0.4296875
5 10 0.5078125
6 10 -0.90625
9 10 0.6953125
6 11 0.890625
7 12 0.96875
11 12 0.84375
8 13 -0.2265625
12 13 0.9609375
9 14 -0.703125
13 14 0.4921875
10 15 -0.734375
11 15 -0.203125
14 15 0.265625
11 16 -0.8828125
12 17 -0.234375
16 17 -0.5703125
13 18 0.890625
17 18 0.7890625
14 19 -0.9609375
18 19 -0.6171875
15 20 0.0703125
16 20 0.9921875
19 20 -0.390625
16 21 0.578125
17 22 0.0078125
21 22 -0.40625
18 23 -0.8359375
22 23 0.4296875
19 24 0.3203125
23 24 0.609375
20 25 -0.9296875
21 25 -0.109375
24 25 -0.546875