import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while(scanner.hasNextInt()) {
            int n = scanner.nextInt();
            if(n % 2 == 0) {
                System.out.println("Even");
            } else {
                System.out.println("Odd");
            }
        }
    }
}