#include "bits/stdc++.h"
using namespace std;
long double a,sum;
int main(){
    cin >> a;
    for (int i = 1;i <= a;i ++){
        long double s;
        cin >> s;
        sum += s;
    }
    cout << sum << " " << fixed  << setprecision(5) << sum/a;
    return 0;
}