// 例題１．１　５個のデータの合計と平均
// 9ページ

/* reidai 1-1 goukei heikin */
#include <stdio.h>

int main(void)
{
    double x1, x2, x3, x4, x5;
    double goukei, heikin;
    scanf("%lf %lf %lf %lf %lf", &x1, &x2, &x3, &x4, &x5);
    goukei = x1 + x2 + x3 + x4 + x5;
    heikin = goukei / 5.0;
    printf("合計 %10.2f\n", goukei);
    printf("平均 %10.2f\n", heikin);
}