using System;

namespace ReverseString

{       

public class Program

{

    public static void Main(string[]args)

    {

        string Str,Revstr="";

        int Length;

        Console.WriteLine("Enter a String");

        Str=Console.ReadLine();

        Length=Str.Length-1;

        while(Length>=0)

        {

            Revstr=Revstr+Str[Length];

            Length--;

        }

        Console.WriteLine("Reverse String is {0}",Revstr);

        Console.ReadLine();

    }

}

}