using System;
public class Program
{
public static void Main()
Console.WriteLine("Hello World");
String cad="";
Console.WriteLine("ingresa una palabra");
String pal = Console.ReadLine();
int t = pal.Length;
for(int i=t-1;i>=0;i--){
cad=cad+pal.Substring(i, 1);
}
Console.WriteLine(cad);
Console.ReadLine();