problemas-para-competicao-pibiti-arthur-dolival/rede-anel-estelar/input/101

42 42
33 8
10 38
29 14
32 3
29 19
39 32
1 11
6 31
12 20
36 27
26 34
9 16
24 37
3 35
30 26
33 22
17 12
5 1
27 5
19 4
14 18
2 41
40 11
36 13
2 38
40 35
34 25
24 31
7 39
42 41
37 23
17 7
30 9
10 8
13 28
42 25
15 22
23 28
18 21
16 21
6 20
15 4