제출 #64745

2
3 3
2 1
3 1
3 2
6 11
1 4
2 5
3 4
2 1
1 3
2 6
5 3
2 4
1 5
6 1
2 3

YES
NO

NO
NO

3
9 11
1 6
2 3
1 7
5 1
8 1
4 2
2 5
3 1
4 1
9 1
2 1
3 2
1 2
3 1
3 3
2 3
1 3
2 1

NO
YES
YES

NO
YES
NO

3
7 6
4 1
1 6
1 5
1 2
3 1
7 1
5 9
3 4
5 1
1 2
3 5
1 4
4 2
1 3
2 3
2 5
3 3
1 3
2 1
2 3

YES
NO
YES

YES
NO
NO