제출 #170482

4
1 2
4 4
2 3
3 1

1
1

1
3

cables cross: cable at A=3 with B=1 after B<=3

5
5 5
4 1
3 4
2 3
1 2

1
1

1
4

cables cross: cable at A=4 with B=1 after B<=4

5
2 5
3 3
5 1
1 2
4 4

2
1
2

2
2
5

cables cross: cable at A=5 with B=1 after B<=4