import java.util.Scanner;

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

        String team = scanner.nextLine();
        String souvenirs = scanner.nextLine();
        int countSouvenirs = Integer.parseInt(scanner.nextLine());
        double sum = 0;
        boolean teamValid = false;
        boolean souvenirValid = false;

        switch (team) {
            case "Argentina":
                switch (souvenirs) {
                    case "flags":
                        sum += 3.25;
                        break;
                    case "caps":
                        sum += 7.20;
                        break;
                    case "posters":
                        sum += 5.10;
                        break;
                    case "stickers":
                        sum += 1.25;
                        break;
                    default:
                        souvenirValid = true;
                        break;
                }
            case "Brazil":
                switch (souvenirs) {
                    case "flags":
                        sum += 4.20;
                        break;
                    case "caps":
                        sum += 8.50;
                        break;
                    case "posters":
                        sum += 5.35;
                        break;
                    case "stickers":
                        sum += 1.20;
                        break;
                    default:
                        souvenirValid = true;
                        break;
                }
            case "Croatia":
                switch (souvenirs) {
                    case "flags":
                        sum += 2.75;
                        break;
                    case "caps":
                        sum += 6.90;
                        break;
                    case "posters":
                        sum += 4.95;
                        break;
                    case "stickers":
                        sum += 1.10;
                        break;
                    default:
                        souvenirValid = true;
                        break;
                }
            case "Denmark":
                switch (souvenirs) {
                    case "flags":
                        sum += 3.10;
                        break;
                    case "caps":
                        sum += 6.50;
                        break;
                    case "posters":
                        sum += 4.80;
                        break;
                    case "stickers":
                        sum += 0.90;
                        break;
                    default:
                        souvenirValid = true;
                        break;
                }

                break;
            default:
                teamValid = true;
                break;
        }
        double lastPrice = countSouvenirs * sum;

        if (teamValid) {
            System.out.println("Invalid country!");
        } else if (souvenirValid) {
            System.out.println("Invalid stock!");
        } else {
            System.out.println(String.format("Pepi bought %d %s of %s for %.2f lv.", countSouvenirs, souvenirs, team, lastPrice));
        }

    }
}