package com.company;

import java.sql.SQLOutput;
import java.util.Scanner;

public class Main {

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

        int n = Integer.parseInt(scanner.nextLine());
        while (n%2!=0){
            System.out.println("Please write an even number.");
            n = scanner.nextInt();
        }
        System.out.printf("The number is: %d",Math.abs(n));
    }
}