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

namespace ABC138
{
	class Program
	{
		static void Main(string[] args)
		{


			int a;
			a = int.Parse(Console.ReadLine());
				
			
			if (a >= 3200)
				Console.WriteLine("pink");
			else if (a < 3200)
				Console.WriteLine("red");
			Console.ReadKey();
		}
	}
}
