#include <stdio.h>

int main(void){
    
    int a, b, c, d;
    float e;
    
    scanf("%d,%d,%d", &a, &b, &c);
    d = a + b + c;
    e = d/3;
    printf("合計点：%d\n平均点：%0.1f", d, e);
    return 0;
}