#define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>

int main()
{
	double height;
	double total = 0;
	int num = 0;

	while (1) {
		printf("身長(0で終了):");
		if (scanf("%lf", &height) != 1) {
			continue;
		}
		if (height == 0) break;
		total += height;
		num++;
	}

	if (0 < num) {
		printf("合計=%f\n", total);
		printf("平均=%f\n", total / num);
	}

	return 0;
}