data/cycle/graph_structure/hard/graph1012.txt

26 28
19 15
4 12
17 14
22 24
20 0
10 22
18 21
22 17
0 2
22 13
4 20
23 22
9 11
9 23
0 1
19 3
3 0
2 1
6 23
25 0
25 2
7 12
7 10
19 4
11 5
19 21
11 16
5 8