A:=[ [ 1,-5, 3, 2, 4,-6], 
     [ 3, 4, 1, 2,-6, 5], 
     [-3,-6, 4, 2, 5,-1], 
     [ 2, 6,-4, 1, 3, 5], 
     [ 4,-2, 1, 5, 3, 6], 
     [ 1, 3, 5, 4,-2, 6]]: