using System;

public class Program

{

    public static void Main()

    {

        string str="Dumar Chandrashekhar Kashyap";

        Console.WriteLine("Original Name: "+str);

        //int length=str.Length;

        //char[] charNameArr=str.ToCharArray();

        //Array.Reverse(charNameArr);

        var result=ReverseString_Rec(str.Substring(0));

        Console.WriteLine(str[0]+", Reveresed Name: "+ result);

    }

    public static string ReverseString_Rec(string str) 

    {  

        if (str.Length <= 1) 

            return str;  

        else 

            return ReverseString_Rec(str.Substring(1)) + str[0];  

    } 

}