import java.util.Scanner;
public class MyClass {
    public static void main(String args[]) {
        Scanner scanner = new Scanner(System.in);
        String drink = scanner.next();
        String sugar = scanner.next();
        int numberOfOrders = scanner.nextInt();

        double espressoPrice = 0.9;
        double cappuccinoPrice = 1.0;
        double teaPrice = 0.5;

        double totalPrice = 0.0;
        double discount = 0.0;

        switch (sugar) {
            case "Normal" : espressoPrice += 0.1; cappuccinoPrice += 0.2; teaPrice += 0.1; break;
            case "Extra" : espressoPrice += 0.3; cappuccinoPrice += 0.6; teaPrice += 0.2; break;
            default : discount = 0.35;
        }

        switch (drink) {
            case "Espresso" : totalPrice = numberOfOrders * espressoPrice * (1 - discount); break;
            case "Cappuccino" : totalPrice = numberOfOrders * cappuccinoPrice * (1 - discount); break;
            default : totalPrice = numberOfOrders * teaPrice * (1 - discount);
        }

        if (drink.equals("Espresso") && numberOfOrders >= 5) {
            totalPrice = totalPrice * 0.75;
        }

        if (totalPrice > 15) {
            totalPrice = totalPrice * 0.8;
        }

        System.out.printf("You bought %d cups of %s for %.2f lv.",numberOfOrders,drink,totalPrice);
    }
}