25 45
1 2 -0.9921875
2 3 0.796875
3 4 -0.1484375
1 5 -0.109375
4 5 -0.6640625
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2 7 -0.84375
6 7 -0.09375
3 8 -0.1015625
7 8 -0.9765625
4 9 0.5703125
8 9 -0.8359375
5 10 -1.0
6 10 -0.828125
9 10 -0.2265625
6 11 -0.078125
7 12 -0.59375
11 12 -0.234375
8 13 -0.046875
12 13 -0.1171875
9 14 0.625
13 14 0.3984375
10 15 -0.5078125
11 15 -0.078125
14 15 0.5390625
11 16 -0.1328125
12 17 -0.015625
16 17 -0.6875
13 18 -0.6015625
17 18 -0.6875
14 19 0.5625
18 19 -0.828125
15 20 -0.859375
16 20 0.0625
19 20 -0.890625
16 21 -0.9765625
17 22 -0.0546875
21 22 -0.9375
18 23 0.203125
22 23 -0.7421875
19 24 -0.3984375
23 24 0.7578125
20 25 0.1640625
21 25 0.5
24 25 0.6796875