M:
{7 21 :
1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0   
1 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 
0 1 0 0 0 0 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0
0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 1 1 1 0 0 0
0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 1 0 0 1 1 0
0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 1 0 1 0 1
0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 1 0 1 1}