7
0 11 11 9 9 8 10 
11 0 2 4 4 5 3 
11 2 0 2 2 3 1 
9 4 2 0 2 3 1 
9 4 2 2 0 3 1 
8 5 3 3 3 0 2 
10 3 1 1 1 2 0