import java.util.Scanner;
public class Main{
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int x = (a+b);
        if(x%2==1){
            System.out.println("Odd");
        }
        else{
            System.out.println("Even");
        }
    }
}