data/flow/graph_structure/easy/graph124.txt

7 14
0 1 3
0 5 1
1 5 9
2 4 10
2 3 10
2 0 5
3 0 2
4 3 8
4 5 8
4 6 1
5 0 5
6 4 9
6 5 8
6 0 6
6 1
3