import java.util.Scanner;

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

        String day = scanner.nextLine().toLowerCase();
        int age = scanner.nextInt();
        double price = 0.0;
        boolean isValid = true;

        if (day.equals("weekday")) {
            if (age >= 0 && age <= 18) {
                price = 12;
            } else if (age > 18 && age <= 64) {
                price = 18;
            } else if (age > 64 && age <= 122) {
                price = 12;
            }
        } else if (day.equals("weekend")) {
            if (age >= 0 && age <= 18) {
                price = 15;
            } else if (age > 18 && age <= 64) {
                price = 20;
            } else if (age > 64 && age <= 122) {
                price = 15;
            }
        } else if (day.equals("holiday")) {
            if (age >= 0 && age <= 18) {
                price = 5;
            } else if (age > 18 && age <= 64) {
                price = 12;
            } else if (age > 64 && age <= 122) {
                price = 10;
            }
        } else {
            isValid = false;
        }

        if (isValid) {
            System.out.printf("%.0f$", price);
        } else {
            System.out.println("Error!");
        }


    }
}