25 45
1 2 0.0859375
2 3 -0.7734375
3 4 -0.03125
1 5 -0.3046875
4 5 0.5
1 6 0.875
2 7 -0.890625
6 7 0.0546875
3 8 -0.125
7 8 -0.71875
4 9 -0.0546875
8 9 -0.3046875
5 10 -0.1796875
6 10 0.0234375
9 10 -0.71875
6 11 0.453125
7 12 -0.8828125
11 12 0.328125
8 13 -0.359375
12 13 -0.453125
9 14 0.1796875
13 14 0.2421875
10 15 0.25
11 15 0.3515625
14 15 0.140625
11 16 0.5390625
12 17 0.3125
16 17 -0.8671875
13 18 -0.6640625
17 18 -0.859375
14 19 -0.3515625
18 19 -0.796875
15 20 0.0625
16 20 -0.4296875
19 20 -0.390625
16 21 -0.015625
17 22 -0.8671875
21 22 0.2578125
18 23 0.140625
22 23 0.484375
19 24 0.328125
23 24 -0.046875
20 25 -0.4453125
21 25 0.953125
24 25 -0.8046875