24 38
1 2 -0.0859375
2 3 -0.578125
4 5 -0.78125
5 6 -0.6640625
7 13 -0.2265625
7 8 0.8359375
8 14 0.10546875
8 9 0.859375
9 15 -0.4375
10 16 -0.1328125
10 11 0.625
11 17 -0.42578125
11 12 0.8359375
12 18 0.43359375
1 13 -2.0
2 14 -2.0
3 15 -2.0
4 16 -2.0
13 16 0.6328125
5 17 -2.0
14 17 0.4921875
6 18 -2.0
15 18 0.203125
1 19 -0.2265625
7 19 -2.0
2 20 0.10546875
8 20 -2.0
3 21 -0.4375
9 21 -2.0
4 22 -0.1328125
10 22 -2.0
19 22 0.015625
5 23 -0.42578125
11 23 -2.0
20 23 0.59375
6 24 0.43359375
12 24 -2.0
21 24 0.609375