제출 #123557

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

4

3

4 4
0 0 2 0
0 2 0 0
0 2 0 0
2 2 2 0

3

2

4 4
0 0 2 2
2 2 0 2
2 0 2 2
0 2 0 2

2

1