using System;

public class Program

{

    public static void Main()

    {

        //Marifer Ortega

        int x;

        Console.WriteLine("Write an even number.");

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

        while (x % 2 != 1)

        {

            Console.WriteLine("Give me another even number.");

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

        }

        Console.WriteLine("That's not an even number. The end.");

    }

}