#include <stdio.h>

int main() 
{
	int say,n;
	float snc = 0;
	printf("sayiyi giriniz: "); 
	scanf("%d", &n);
	for (int i = 1; i <= n; i++) {
		printf("bir sayi giriniz: "); 
		scanf("%d", &say);
		snc += say;
	}
	snc = snc / n;
	printf("eb: %.2f\n",snc);

}