Akm = {{3,-1, (-1)*(A(3,1))} , 
       {3, 1, A(3,1)} , 
       {3,-2, (-I)*(B(3,2))} , 
       {3, 2, (I)*(B(3,2))} , 
       {3,-3, (-1)*(A(3,3))} , 
       {3, 3, A(3,3)} }