5 15
1 1 0.0
1 2 0.7391665240550763
1 3 0.0
1 4 0.0
1 5 0.0
2 2 0.0
2 3 -0.4000688644438595
2 4 0.0
2 5 0.0
3 3 0.0
3 4 -0.9828444266270129
3 5 0.0
4 4 0.0
4 5 0.7060558140287924
5 5 0.0