problemas-para-competicao-p…/rede-anel-estelar/input/42

27 32
2 10
16 11
17 4
8 6
24 7
19 8
13 7
18 21
27 12
19 4
8 3
25 8
13 25
10 19
13 6
1 8
16 26
13 9
16 23
3 6
15 12
19 3
11 3
2 18
2 22
23 3
8 23
18 5
14 6
25 3
12 20
27 4
 32
 10
 11
 4
 6
 7
 8
 7
 21
 12
 4
 3
 8
 25
 19
 6
 8
 26
 9
 23
 6
 12
 3
 3
 18
 22
 3
 23
 5
 6
 3
 20
 4