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