(50)200B(B. Drinks).cpp

#include<iostream>
using namespace std;
int main()
{
    int a,i;
    cin>>a;
    float sum=0;
    int b[a];
    for(i=0;i<a;i++)
    {
        cin>>b[i];
        sum+=b[i];
    }
    cout<<sum/a;
}