제출 #90461

8 4
8 4
5 3
5 2
4 5
4
7 1
2 8
8 2
5 1

0
0
0
0

0
1
-1
0

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

-1
1
1
-1
0
0
0
0

-1
1
1
-1
-1
0
-1
0