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