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++)
n = n / 10;
ni = (ni + r ) * 10;
}
ni = ni + n;
Console.WriteLine("el numero invertido es: " + ni);