#include <iostream>
using namespace std;

int main() {
  int n = 0;
  double sum = 0;
  cin >> n;
  for (int i = 0;i < n;i++){
    int l;
    cin >> l;
    sum += l;
  }
  cout << sum << " ";
  cout << fixed;
  cout.precision(5);
  cout << sum/n << endl;
}