package sample;

import java.util.Scanner;

public class OddEven {

	public static void main(String args[])
	{
		Scanner sc = new Scanner(System.in);
		int inputNumber=sc.nextInt();

		if(inputNumber%2==0)
		{
			System.out.println("Even");
		}
		else
		{
			System.out.println("Odd");
		}
	}
}