#include <fstream>
#include <algorithm>
#include <iomanip>
using namespace std;
ifstream cin("stats.in");
ofstream cout("stats.out");
int n,s[501];
int main()
{
	int i;
	double m=0;
	cin>>n;
	for(i=1;i<=n;i++)
	{
		cin>>s[i];
		m+=s[i];
	}
	m/=n;
	sort(s+1,s+1+n);
	cout<<setiosflags(ios::fixed)<<setprecision(6);
	cout<<m<<endl;
	if(n%2==0)
		cout<<(double)((s[n/2]+s[n/2+1])/2.0)<<endl;
	else
		cout<<(double)(s[(n+1)/2])<<endl;
	cin.close();
	cout.close();
	return 0;
}