제출 #171866

5
2 3
4 5
5 1
3 4
1 2

2
2
5

1
5

too many cables removed: minimal is 1, found 2

6
2 3
6 5
1 1
5 6
3 2
4 4

1
3

2
3
6

cables cross: cable at A=6 with B=5 after B<=6

7
1 1
5 5
4 4
3 2
7 6
2 3
6 7

1
3

2
3
7

cables cross: cable at A=7 with B=6 after B<=7