import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        String ch = sc.nextLine();
        String number = sc.nextLine();

        char label = ch.charAt(0);
        int rank = Integer.parseInt(number);

        if (((label == 'a' || label == 'c' || label == 'e' || label == 'g')
                && (rank == 1 || rank == 3 || rank == 5 || rank == 7))
                || ((label == 'b' || label == 'd' || label == 'f' || label == 'h')
                        && (rank == 2 || rank == 4 || rank == 6 || rank == 8))) {
            System.out.println("dark");
        } else {
            System.out.println("light");
        }

    }
}