import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while(scan.hasNextInt()) {
            Integer num = scan.nextInt();
            if(num.intValue() % 2  == 1) {//注意integer转int
                System.out.println("Odd");
            } else {
                System.out.println("Even");
            }
        }
    }
}