제출 #57482

4
1 2
2 3
1 4

1
1
2

1
2
1

5
1 4
1 2
4 5
3 2

1
1
4
2

1
2
1
4

5
5 1
4 3
2 3
1 2

1
1
2
3

1
2
3
1