import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        int n = scanner.nextInt();
        String a = scanner.next();
        String b = scanner.next();
        
        for (int i = 0; i < n; i++) {
            if (a.charAt(i) == 'o' && b.charAt(i) == 'o') {
                System.out.println("Lucky Turtleman");
                return;
            }
        }
        
        System.out.println("Unlucky Turtleman");
    }
}