제출 #112394

4
0 2 2 8
5 4 6 8
6 4 6 8
0 5 7 0

1

0

4
1 0 2 5
0 6 0 2
1 6 9 5
0 4 0 0

2

0

4
0 4 0 5
6 0 0 8
8 6 0 0
0 8 5 0

1

0