10 12
1 3 8.0622577483
2 8 5.3851648071
3 4 14.3178210633
4 7 5.3851648071
5 1 8.6023252670
6 2 9.4868329805
7 3 10.2956301410
8 3 5.0000000000
9 6 7.8102496759
10 4 3.6055512755
4 6 14.3178210633
4 1 7.2111025509