data/cycle/graph_structure/hard/graph1010.txt

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