Photo

import java.util.Scanner;

public class _03_Photo_Pictures {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int picturesCount = Integer.parseInt(input.nextLine());
        String pictureType = input.nextLine();
        String orderType = input.nextLine();

        double price = 0;
        double finalPrice = 0;
        double discount;
        switch (orderType) {
            case "online":
                switch (pictureType) {
                    case "9X13":
                        if (picturesCount < 50) {
                            price = picturesCount * 0.16;
                            discount = (1 - 0.02);
                            finalPrice = price * discount;
                        }
                        if (picturesCount >= 50) {
                            price = picturesCount * 0.16;
                            discount = (1 - 0.07);
                            finalPrice = price * discount;
                        }
                        break;
                    case "10X15":
                        if (picturesCount >= 80) {
                            price = picturesCount * 0.16;
                            discount = 1-0.05;
                            finalPrice = price * discount;
                        }
                        if (picturesCount < 80) {
                            price = picturesCount * 0.16;
                            discount = (1 - 0.02);
                            finalPrice = price * discount;
                        }
                        break;
                    case "13X18":
                        if (picturesCount >= 50 && picturesCount <= 100) {
                            price = picturesCount * 0.38;
                            discount = 1-0.05;
                            finalPrice = price * discount;
                        } else if (picturesCount > 100) {
                            price = picturesCount * 0.38;
                            discount = 1-0.07;
                            finalPrice = price * discount;
                        }else  {
                            price = picturesCount * 0.16;
                            discount = (1 - 0.02);
                            finalPrice = price * discount;
                        }
                        break;
                    case "20X30":
                        if (picturesCount >= 10 && picturesCount <= 50) {
                            price = picturesCount * 2.90;
                            discount = 1-0.09;
                            finalPrice = price * discount;
                        } else if (picturesCount > 50) {
                            price = picturesCount * 2.90;
                            discount = 1 - 0.11;
                            finalPrice = price * discount;
                        } else {
                            price = picturesCount * 0.16;
                            discount = (1 - 0.02);
                            finalPrice = price * discount;
                        }
                        break;
                }
                break;
            case "office":
                switch (pictureType) {
                    case "9X13":
                        if (picturesCount < 50) {
                            finalPrice = picturesCount * 0.16;
                        }else {
                            price = picturesCount * 0.16;
                            discount = (1 - 0.05);
                            finalPrice = price * discount;
                        }
                        break;
                    case "10X15":
                        if (picturesCount >= 80) {
                            price = picturesCount * 0.16;
                            discount = 1-0.03 ;
                            finalPrice = price * discount;
                        }else {
                            price = picturesCount * 0.16;
                            finalPrice = price;
                        }
                        break;
                    case "13X18":
                        if (picturesCount >= 50 && picturesCount <= 100) {
                            price = picturesCount * 0.38;
                            discount = 1-0.03;
                            finalPrice = price * discount;
                        } else if (picturesCount > 100) {
                            price = picturesCount * 0.38;
                            discount = 1-0.05;
                            finalPrice = price * discount;
                        }else {
                            price = picturesCount * 0.16;
                            finalPrice = price;
                        }
                        break;
                    case "20X30":
                        if (picturesCount >= 10 && picturesCount <= 50) {
                            price = picturesCount * 0.38;
                            discount = 1-0.07;
                            finalPrice = price * discount;
                        }else if (picturesCount > 50) {
                            price = picturesCount * 2.90;
                            discount = 1-0.09;
                            finalPrice = price * discount;
                        }else {
                            price = picturesCount * 0.16;
                            finalPrice = price;
                        }
                        break;
                }
        }
        System.out.printf("%.2fBGN", finalPrice);

    }
}