import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner (System.in);
		int a = sc.nextInt();
		String s = sc.next();
		if(a>3200) {
			System.out.println("Red");
		}
		else {
			System.out.println(s);
		}	
	}
}
