25 45
1 2 -0.421875
2 3 -0.8125
3 4 0.6328125
1 5 -0.4921875
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1 6 0.78125
2 7 -0.6171875
6 7 0.3515625
3 8 -0.875
7 8 -0.609375
4 9 -0.484375
8 9 -0.59375
5 10 -0.8046875
6 10 -0.015625
9 10 0.515625
6 11 0.9296875
7 12 -0.1328125
11 12 -0.375
8 13 0.578125
12 13 0.2421875
9 14 0.0703125
13 14 -0.6640625
10 15 -0.7890625
11 15 -0.6484375
14 15 0.6796875
11 16 -0.8125
12 17 -0.4921875
16 17 0.984375
13 18 -0.21875
17 18 -0.1484375
14 19 0.8828125
18 19 -0.9921875
15 20 -0.2421875
16 20 0.8125
19 20 0.953125
16 21 -0.6328125
17 22 0.0625
21 22 -0.078125
18 23 -0.6015625
22 23 0.8359375
19 24 -0.125
23 24 0.328125
20 25 0.890625
21 25 -0.1328125
24 25 -0.828125