#include <stdio.h>
#include <stdlib.h>

int main(void){
	double x=0;
	double y=0;
	printf("saisir cinq nombres reels: ");
	scanf("%lf",&y);
	x= x+y;
	scanf("%lf",&y);
	x= x+y;
	scanf("%lf",&y);
	x= x+y;
	scanf("%lf",&y);
	x= x+y;
	scanf("%lf",&y);
	x= x+y;
	printf("la somme des cinq reels est : %f", x);
	return EXIT_SUCCESS;
}