25 45
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2 3 -0.984375
3 4 -0.8046875
1 5 -0.59375
4 5 -0.8046875
1 6 0.78125
2 7 -0.7109375
6 7 -0.4921875
3 8 0.125
7 8 -0.1328125
4 9 -0.75
8 9 0.828125
5 10 -0.2265625
6 10 0.484375
9 10 0.796875
6 11 -0.7109375
7 12 -0.078125
11 12 0.0625
8 13 -0.1640625
12 13 -0.796875
9 14 0.59375
13 14 -1.0
10 15 0.1796875
11 15 -0.609375
14 15 -0.7734375
11 16 0.5625
12 17 -0.2734375
16 17 0.0546875
13 18 -0.7578125
17 18 0.2109375
14 19 0.9296875
18 19 -0.109375
15 20 0.3203125
16 20 0.65625
19 20 -0.59375
16 21 -0.671875
17 22 -0.7109375
21 22 -0.4609375
18 23 0.2109375
22 23 0.203125
19 24 -0.96875
23 24 -0.03125
20 25 -0.65625
21 25 -0.453125
24 25 -0.5859375