DailyIncome

import java.util.Scanner;

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

        int workDays = Integer.parseInt(scanner.nextLine());
        double dailyIncome = Double.parseDouble(scanner.nextLine());
        double exchangeRate = Double.parseDouble(scanner.nextLine());

        //   1 месечна заплата = 21 * 75 = 1575 долара.
        double monthlyIncome = workDays * dailyIncome;
        // Годишен доход = 1575 * 12 + 1575 * 2.5 = 22837.5 долара.
        double yearlyIncome = monthlyIncome * 12 + monthlyIncome * 2.5;

        // Данък = 25% от 22837.5 = 5709.375 лева.
        double taxes = yearlyIncome * 0.25;
        // Чист годишен доход = 17128.125 долара = 27233.71875 лева.
        double IncomeAfterTaxesAnnually = (yearlyIncome - taxes) * exchangeRate;
        // Средна печалба на ден = 27233.71875 / 365 = 74.61 лева.
        double AverageDailyIncome = IncomeAfterTaxesAnnually / 365;

        System.out.printf("%.2f", AverageDailyIncome);

    }
}