import java.util.Scanner;

public class Hello {
	public static void main(String[] args) {
		
		Scanner scanner = new Scanner(System.in);
		String a = scanner.next();
		String b = scanner.next();
        
		if(( a.substring(a.length()) == "1" ) && ( b.substring(b.length()) == "1" )){
			System.out.println("Odd");
		}else{
			System.out.println("Even");
		}
	
	    scanner.close();
       
	}
}