import java.util.Scanner;

public class EvenNumber{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = Integer.parseInt(scanner.nextLine());

        for (int i = 1; i <= Math.abs(n); i++) {

            if (n % 2 != 0) {
                System.out.println("Please write an even number.");
            } else if (n % 2 == 0) {
                System.out.printf("The number is: %d%n", Math.abs(n));

            }
            n = Integer.parseInt(scanner.nextLine());
        }
    }
}