#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
double s;
int n;
int a[10001];
long long sum;
int main()
{
    cin >> n;
    for (int i = 1; i <= n; i++)
    {
        cin >> a[i];
        sum += a[i];
    }
    s = 1.0 * sum / n;
    cout << sum << endl;
    cout << fixed << setprecision(5) << s << endl;
    return 0;
}