#include <iostream>
#include <iomanip>
#include <algorithm>
#include <cstdio>
using namespace std;
int num[510];
int main()
{
  freopen("stats.in","r",stdin);
  freopen("stats.out","w",stdout);
  int n;  //有几个数
  double total=0;  //所有数总和。
  double middle;
  double totaln;
  cin>>n;
  for(int i=1;i<=n;i++)
  {
	cin>>num[i];
	total+=num[i];  //所有数总和
  }
  sort(num+1,num+n+1); //排序
  for(int i=1;i<=n;i++)
  {
    if(n%2!=0)
	{
	  middle=num[n/2+1];
	}
	else
	{
	  int minu;
	  minu=n/2;
	  middle=(minu+1)*minu/2;
	}
  }
  totaln=total/n;
  cout<<setiosflags(ios::fixed)<<setprecision(6);
  cout<<totaln<<endl;
  cout<<middle<<endl;
  fclose(stdin);fclose(stdout);
}