using System;

using System.Collections.Generic;

​

public class HelloWorld

{

    public static void Main(String[] args)

    {

        Console.WriteLine("Hello world - C#!");

        int numberToTest =  4321;

​

        reverseInt(numberToTest); 

        Console.WriteLine(reverseInt(numberToTest));

​

    }

​

    public static int reverseInt(int num)

    {

        //  num = 4321

        int number = num; 

        int result = 0;

​

        int currentNum;

        Queue<int> myList = new Queue<int>();

        while(number != 0)

        {

            currentNum = number % 10;

            myList.Enqueue(currentNum);

            Console.WriteLine(currentNum);

            number = number / 10;

​

        }

​

        int count = 0;

        while(myList.Peek() != null)

        {

​

            result += myList.Dequeue() * (int)Math.Pow(10,count);

            count++;

​

        }

​

        return result;

​

    }

}