5 15
1 1 0.0
1 2 -0.8306716046258675
1 3 0.0
1 4 0.0
1 5 0.0
2 2 0.0
2 3 0.7850691326233723
2 4 0.0
2 5 0.0
3 3 0.0
3 4 1.0141893185478414
3 5 0.0
4 4 0.0
4 5 -0.12555456782124425
5 5 0.0