2
4 4 4000
0 1 0.01 0
0 2 0 45.1
1 3 0 45.1
2 3 0.01 0
4 5 4000
0 1 0.01 0
0 2 0 45.1
1 3 0 45.1
1 2 0 0
2 3 0.01 0