11
2 1 3 0 0 2 2 4 0
1 2 3 0 0 2 2 4 0
0 0 4 0 0 0 10 10 10 10 0
5 5 4 0 0 0 10 10 10 10 0
11 10 4 0 0 0 10 10 10 10 0
2 2 5 0 0 0 2 2 3 4 2 4 0
2 4 5 0 0 0 2 2 3 4 2 4 0
0 0 8 0 1 0 2 1 3 2 3 3 2 3 1 2 0 1 0
1 1 8 0 1 0 2 1 3 2 3 3 2 3 1 2 0 1 0
2 2 8 0 1 0 2 1 3 2 3 3 2 3 1 2 0 1 0
3 3 8 0 1 0 2 1 3 2 3 3 2 3 1 2 0 1 0