C program : Add two complex numbers

#include <stdio.h>

struct complex

{

   int real, img;

};

int main()

{

   struct complex a, b, c;

        printf("Please enter first complex number\n");  

       printf("Enter Real part of the 1st complex   number\n");

      scanf("%d", &a.real);

     printf("Enter Imaginary part of the 1st complex    number without i\n");

    scanf("%d", &a.img);

    printf("Please enter second complex number\n");

   printf("Enter Real part of the 2nd complex number\n");

 scanf("%d", &b.real);

 printf("Enter Imaginary part of the 2nd complex number without i\n");

scanf("%d", &b.img);

c.real = a.real + b.real;

c.img = a.img + b.img;

if ( c.img >= 0 )

 printf("The sum of two complex numbers = %d + %di\n",c.real,c.img);

else

printf("The sum of two complex numbers = %d %di\n",c.real,c.img);

 return 0;

}