public class Hello {
	public static void main(String[] args) {
		
		int a = Integer.parseInt(args[0],2);
		int b = Integer.parseInt(args[1],2);
		
		if( (a * b) % 2 == 0 ){
			System.out.println("Even");
		}else{
			System.out.println("Odd");
		}		
	}
}