Prog#170: sum of 2 complex numbers

C Programming
#1 
/*
sum of 2 complex numbers
Program#170
*/
#include<stdio.h>
main()
{
typedef struct complex
{
int real;
int imag;
}COMPLEX;
COMPLEX C1, C2, C3;
scanf("%d, %d, %d, %d", & C1.real, & C1.imag, & C2.real, & C2.imag);
C3.real=C1.real+C2.real;
C3.imag=C1.imag+C2.imag;
printf("%d+i%d", C3.real, C3.imag);
}