#include <iostream>
#include <cstdio>
#include <iomanip>
#include <algorithm>
using namespace std;
int main(){
	freopen("stats.in","r",stdin);
	freopen("stats.out","w",stdout);
	int a[501];
	int n;
	double sum=0,b;
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a[i];
		sum+=a[i];
	}
	sum/=n;
	cout<<setiosflags(ios::fixed)<<setprecision(6);
	cout<<sum<<endl;
	sort(a,a+n);
	if(n%2==0){
		b=(a[n/2]+a[n/2-1]);
		cout<<setiosflags(ios::fixed)<<setprecision(6);
		cout<<b/2;}
	else{
		cout<<setiosflags(ios::fixed)<<setprecision(6);
		b=a[n/2];
		cout<<b;}
	return 0;
}