#include <iostream>
#include <iomanip>
using namespace std;
int main(){
	freopen("stats.in","r",stdin);
	freopen("stats.out","w",stdout);
	int n,t,s=0;
	cin>>n;
	int a[n];
	for(int i=0;i<n;i++)
		cin>>a[i];
	for(int j=0;j<n;j++)
		s=s+a[j];
	(double)s/n;
	cout<<fixed<<setprecision(6)<<(double)(s)/n<<endl; 
		for(int q=0;q<n;q++)
				for(int w=q;w<n;w++)
					if(a[q]<a[w]){t=a[q];a[q]=a[w];a[w]=t;}
	if(n%2==1){
    cout<<fixed<<setprecision(6)<<a[(n-1)/2]/1.0<<endl; }
    if(n%2==0){
    cout<<fixed<<setprecision(6)<<(a[n/2]+a[(n-2)/2])/2.0<<endl;}
	return 0;}