#7

 * @author Kailey McNeal
 * @version 10-23-14
 * p.299 #7
 */
import java.util.*;
public class Seven
{
    public static void main (String[]args)
    {
        Scanner console=new Scanner(System.in);
        int num=console.nextInt();
        if (num%2==0)
        {
            System.out.println("even");
        }
        else
        {
            System.out.println("odd");
        }
    }
}