#include <stdio.h>

int main()
{
	int i;
	double ki[5], toTal=0, avG;

	for (i=0;i<5;i++)
	{
		printf("Å°¸¦ ÀÔ·ÂÇϼ¼¿ä\n");
		scanf("%lf",&ki[i]);
	}
	for (i=0;i<5;i++)
	{
		toTal=toTal+ki[i];
	}

	avG=toTal/5.0;
	printf("Æò±ÕÅ°´Â %lfÀÔ´Ï´Ù",avG);
}