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

namespace Contest
{
    class Program
    {
        static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());
            string color = Console.ReadLine();

            //出力
            Console.WriteLine(N >= 3200 ? "red":color);
            Console.ReadLine();
        }
    }
}
