using System;

namespace ConsoleApp1
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var a = int.Parse(Console.ReadLine());
            var s = Console.ReadLine();

            if (a <= 3200)
            {
                Console.WriteLine(s);
            }
            else
            {
                Console.WriteLine("red");
            }
        }
    }
}