data/cycle/graph_structure/hard/graph1030.txt

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