using System;

public class Program

{

    public static void Main()

    {

        int n, r, ni;

        Console.WriteLine("ESCRIBE UN NUMERO");

        n = int.Parse(Console.ReadLine());

        r = n % 10;

        n = n/ 10;

        ni = r * 10;

        for ( int i = 1 ; i < n ; i++)

        {

        r = n % 10;

        n = n / 10;

        ni = (ni + r ) * 10;

        }

        ni = ni + n;

        Console.WriteLine("el numero invertido es: " + ni);

    }

}