fortran - Assigning variable number to complex array -

I want to specify the complex array as the variable. Like my code

  Complex indices (3,3) integer i, j do i = 1,3 do j = 1,3 write index (i, j) = (i, j) (*, *) Ends (I, J) ending   
 and in this case I am getting an error  
  symbol should be in this context A fixed parameter [I] index (i, j) = (i, j)    
 
 
 You should use the function to assign complex that you want to assign.  
  Complex indices (3,3) integer I, j do i = 1,3 do j = 1,3 Indx (i, j) = to write CMPLX (I, J)   
 The syntax you tried is only  Continuous Literals .