Add complex number

#include <stdio.h>
struct complex
{
   int real, img;
};

int main()
{
   struct complex p, q, r;

   printf("Enter p and q where (p + iq) is the first complex number.\n");
   scanf("%d%d", &p.real, &p.img);
   printf("Enter r and s where (r + is) is the second complex number.\n");
   scanf("%d%d", &q.real, &q.img);

   r.real = p.real + q.real;
   r.img = p.img + q.img;

   printf("Sum of the complex numbers: (%d) + (%di)\n", r.real, r.img);

   return 0;
}