#include <stdio.h>

int main()
{
    int j,m,t;
    
    scanf("%d", &j);
    scanf("%d", &m);
    scanf("%d", &t);
    
    printf("合計点:%.1d\n", j+m+t);
    printf("平均点:%.1f\n", j+m+t / 3);
    
    return 0;
}