using System;

using System.Linq;  

public class Program

{

    public static void Main()

    {

​

    double  [] ages ={ 16,15,15,14,15,14,17,15,16,16,15,14,14,17,14,16,14,19,14,52, 14};

    float [] newages = new float[ages.Length];

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

    ages.Average(); //number data!!!

    Console.WriteLine("The average of the ages in the class is " + ages.Average());

    Console.WriteLine("The people in the classroom are:");

    for (int i = 0; i<ages.Length; i++)

    {Console.WriteLine(ages[i] + ",");}

    Console.WriteLine("The sorted ages are:");

    Array.Sort(ages);

    for(int b = 0; b <21; b++)

    {

        Console.Write(ages[b] +" ,  ");

    }

    Console.WriteLine("The unsorted list is:");

        for(int b = 0; b <21; b++)

    {

        Console.Write(newages[b] +" ,  ");

    }

    }

}