using System;

namespace Chess_Square_Color
{
    class Program
    {
        static void Main(string[] args)
        {
            string line = Console.ReadLine();
            int row = int.Parse(Console.ReadLine());

            if (line == "a" || line == "c" || line == "e" || line == "g")
            {
                if (row % 2 == 0)
                {
                    Console.WriteLine("light");
                }
                else
                {
                    Console.WriteLine("dark");
                }
            }
            else
            {
                if (row % 2 == 0)
                {
                    Console.WriteLine("dark");
                }
                else
                {
                    Console.WriteLine("light");
                }
            }
        }
    }
}