import java.util.Scanner;
public class Main{
    public static void main(String args[]){
        Scanner input = new Scanner(System.in);
        //由于输入是多组输入,每行输入包括一个整数,需要判断
        while(input.hasNext()){
            int a = input.nextInt();
            if (a % 2 == 0)
                System.out.println("Even");
            else 
                System.out.println("Odd");
        }
    }
}