#include<stdio.h>
float average(int count,int sum)
{
    return (float)sum/count;
}
int main()
{
    int n,num,sum=0;
    scanf("%d",&n);
    if (n==0)
    {
        printf("No readings provided");
        return 0;
    }
    for(int i=0; i<n; i++);
    {
        scanf("%d", num);
    }
}