#include <stdio.h>
int main()
{
    int a,b,c,sum;
    float ave;
    printf("Enter 3 numbers a b c:");
    scanf("%d %d %d",&a,&b,&c);
    sum = a + b + c;
    ave = sum / 3.0;
    printf("sum = %d\nave = %.2f",sum,ave);
    return 0;
}