using System;

using System.Linq;

using System.Collections;                   

using System.Collections.Generic;       

using System.Data;

using System.Data.Linq;

using System.Data.DataSetExtensions;

using System.Xml;

using System.IO;

using System.Xml.Linq;

​

public class Program

{

    public static void Main()

    {

          int[] arr = new int[5];  

        for (int i = 0; i < 5; i++)

        {

            Console.Write("\nPlease enter a number between 10 and 100: ");

            int number = Convert.ToInt32(Console.ReadLine());

            if (number > 10 && number <= 100)

            {

                arr[i] = number;

            }

            else {

                i--;

            }

​

        }

​

        int[] arr2 = arr.GroupBy(e=>e)                      

                        .Where(e=>e.Count() ==1)

                        .Select(e=>e.Key)

                        .ToArray();

        Console.WriteLine("\n");

        for (int i = 0; i < arr2.Length; i++)

        {

            Console.WriteLine("you entered {0}", arr2[i]);

        }

        Console.ReadLine();

    }

​

}

​

​