제출 #33116

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

NO
NO

YES
NO

2
9 7
9 1
5 3
5 1
5 2
9 3
5 4
2 9
3 2
2 1
3 1

NO
YES

YES
YES

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

YES
NO
YES

YES
YES
YES