#include <bits/stdc++.h>
using namespace std;

int main()
{
    double ans = 0, n, m;
    cin >> n;
    for (int i = 1; i <= n; i++)
    {
        cin >> m;
        ans += m;
    }
    cout << ans << " " << fixed << setprecision(5) << ans / n << endl;
    return 0;
}