import java.util.Scanner;

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