import java.util.Scanner;

/**
 * Created by entropy on 4/25/2017.
 */
public class odd {
    public static void main(String[] args) {
        Scanner scanner = new Scanner (System.in);
        int n = 0;
        System.out.print("Enter even number: ");
        try{
            n= Integer.parseInt(scanner.nextLine());
        }catch (Exception e){
            System.out.println("Invalid number!");
        }

        while (n%2!=0) {

            System.out.println("The number is not even.");
            System.out.print("Enter even number: ");

            try{
                n= Integer.parseInt(scanner.nextLine());
            }catch (Exception e){
                System.out.println("Invalid number!");
            }
        }
        System.out.println("Even number entered: "+n);


    }
}