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