import java.util.Scanner;

public class Main{

	static Scanner s=new Scanner(System.in);

	public static void main(String __[]){
		input();
		solve(s.nextInt());
	}

	private static void input(){
	}

	static final int[] v={2,5,17};
	private static void solve(long in){
		if(in==1) {
			System.out.println("even");
			return;
		}
		for(int i:v) {
			if(in%i==0) {
				System.out.println("odd");
				return;
			}
		}
		System.out.println("even");
	}
}