#include<iostream>
#include<iomanip>
#include<cmath>
using namespace std;
int main()
{
	double m,n=0,a;
	cin >> m;
	for (int i = 0; i <m; i++)
	{
		cin >> a;
		n = n + a;
	}
	cout << n;
	cout << fixed << setprecision(5)<<" " << n / m;

	return 0;
}