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

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