using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication21
{
	class Program
	{
		static void Main(string[] args)
		{
			int a = int.Parse(Console.ReadLine());
			string b = Console.ReadLine();
			if (a >= 3200)
				Console.WriteLine(b);
			else
				Console.WriteLine("red")

		}
	}
}
