#include <stdio.h>
int main(void){
    int j,m,b,T;
    double A;
    scanf("%d",&j);scanf("%d",&m);scanf("%d",&b);
    T=j+m+b;
    A=(j+m+b)/3;
    printf("合計点:%d\n平均点:%.1f\n",T,A);
    return 0;
}