summsion

#include<stdio.h>
int main()
{
    int a,n,sum=0,i,avg;
    scanf("%d",&n);
    for(i=0;i<=n;i++)
    {
        scanf("%d",&a);
        sum=sum+i;

    }
    avg=sum/n;
    printf("sum %d avg %d ",sum,avg);
    return 0;
}