제출 #31317

1

4866144
1 3

1
1 3

2

4866144
1 2
1 3
0 0

3
1 2
1 3
2 3

3

4866144
1 3
1 2
0 0
1 3
0 0
0 0
0 0

7
1 3
1 2
3 2
1 3
2 1
2 3
1 3