제출 #129763

2 4
1 1 1 0
0 0 0 0
2 1 1
2 2 4

1

2

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

1

2

2 5
0 0 0 1 1
1 1 1 1 1
1 2 4
1 3 2

2

4