11
0 3 2 1 1 2 1 1 3 2 1 
3 0 3 2 2 1 2 2 4 3 2 
2 3 0 1 1 2 1 1 3 2 1 
1 2 1 0 41 1 41 41 2 1 41 
1 2 1 41 0 1 41 41 2 1 41 
2 1 2 1 1 0 1 1 3 2 1 
1 2 1 41 41 1 0 41 2 1 41 
1 2 1 41 41 1 41 0 2 1 41 
3 4 3 2 2 3 2 2 0 1 2 
2 3 2 1 1 2 1 1 1 0 1 
1 2 1 41 41 1 41 41 2 1 0