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();
        String result = null;

        if (a%2 == 1){
            if (b%2 == 1){
                result = "Odd";
            }
        }else{
            result = "even";
        }

        System.out.println(result);

    }
}
