import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        String letter = in.nextLine();
        int number = in.nextInt();

        if (number % 2 == 0)
            if (letter == "a" || letter == "c" || letter == "e" || letter == "g") {
                System.out.println("light");
            } else {
                System.out.println("dark");
            }
        if (number % 2 == 1)
            if (letter == "a" || letter == "c" || letter == "e" || letter == "g") {
                System.out.println("dark");
            } else {
                System.out.println("light");
            }
    }
}