using System;

    using System.Linq;  

public class Program

{

    static private int Median(int[] array) 

    {

        int [] tempArray = array;

        int count = tempArray.Length;

        Array.Sort(tempArray);

        int medianValue = 0;

        if (count % 2 == 0)

        {

            int middleElement1 = tempArray[(count / 2) - 1];

            int middleElement2 = tempArray[(count / 2)];

            medianValue = (middleElement1 + middleElement2) / 2;

        }

        else

        {

            medianValue = tempArray[(count / 2)];

        }

​

        return medianValue;

    }

​

    public static void Main()

    {

    int[] ages= {15,17,18,14,16,17,14,14,15,15,14,14,16,16,14,14,14,14,14,14,15,15,15,15,16,16,54};

    Console.WriteLine(ages.Length);

    Console.WriteLine(ages.Average()); 

    int[] other = new int[ages.Length];

Array.Copy(ages, other,ages.Length);

    foreach(int age in ages)

    {

        Console.WriteLine(age);

    }

Console.WriteLine(Median(ages));

​

    }

}