using System;

public class Program

{

    public static void Main()

    {

        string str="My Name is Swati";

        string newstr="";

        string[] strarr= str.Split(' ');

        for(int i= strarr.Length-1;i>=0;i--)

            newstr= newstr+ " " +strarr[i];

                Console.WriteLine(newstr.Trim());

​

    }

}