5 15
1 1 0.0
1 2 0.3593332436493095
1 3 0.0
1 4 0.0
1 5 0.0
2 2 0.0
2 3 0.21752443659964904
2 4 0.0
2 5 0.0
3 3 0.0
3 4 0.7817227208223982
3 5 0.0
4 4 0.0
4 5 -1.7723918963427365
5 5 0.0