import java.util.Scanner;

public class OddEven
{
   public static void main(String[] args) 
   {
       Scanner input = new Scanner(System.in);
       
       int x = input.nextInt();
       
       switch ( x % 2 )
       {
           case 0: System.out.println("Even");
	           break;
           case 1: System.out.println("Odd");  
	           break;
       }
       
   }
}