data/cycle/graph_structure/hard/graph104.txt

27 26
9 18
6 13
23 25
7 15
23 26
15 17
16 2
9 3
15 0
24 20
10 0
1 19
8 5
2 19
25 21
13 9
1 20
3 0
14 10
8 4
12 2
22 3
25 8
11 8
4 2
23 9