data/flow/graph_structure/easy/graph107.txt

7 15
0 3 8
0 1 9
1 5 5
1 0 8
2 6 7
2 0 2
3 0 2
3 1 8
4 5 8
4 0 7
4 1 8
5 3 2
5 2 9
6 5 10
6 0 7
4 0
23