#include <stdio.h>

struct complex{
	float re;
	float im;
};

void zrp(struct complex z1, struct complex z2, struct complex  *z, 
struct complex *r, struct complex *p){

	(*z).re=z1.re+z2.re;
	(*z).im=z1.im+z2.im;
	(*r).re=z1.re-z2.re;
	(*r).im=z1.im-z2.im;
	(*p).re=z1.re*z2.re-z1.im*z2.im;
	(*p).im=z1.re*z2.im+z1.im*z2.re;
}

void prikazicomplex(struct complex c){

	printf("[%f+%f*i]\n",c.re,c.im);
}

int main(){

	struct complex z1,z2,z,r,p;

	printf("Unesite realni i imag. deo broja 1: ");	
	scanf("%f%f", &z1.re,&z1.im);
	 printf("Unesite realni i imag. deo broja 2: ");
        scanf("%f%f", &z2.re,&z2.im);
	zrp(z1,z2,&z,&r,&p);
	prikazicomplex(z);
	prikazicomplex(r);
	prikazicomplex(p);
}