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