using System;
public class Program
{
public static void Main()
int i,sum=0,median;
int n=int.Parse(Console.ReadLine());
int[] B=new int[100];
for(i=0;i<n;i++)
B[i]=int.Parse(Console.ReadLine());
}
sum+=B[i];
sum=sum/n;
Console.WriteLine("mean is {0}",sum);
if(n%2==0)
median=((n+1))/2;
Console.WriteLine("median is {0}",median);
else
median=n/2;
if(B[i]==B[i+1])
Console.WriteLine(B[i]);