06. Charity Campaign

import java.util.Scanner;

public class P06CharityCampaign {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int campaignDays = Integer.parseInt(scanner.nextLine());
        int countCook = Integer.parseInt(scanner.nextLine());
        int countCakes = Integer.parseInt(scanner.nextLine());
        int countWaffles = Integer.parseInt(scanner.nextLine());
        int countPancakes = Integer.parseInt(scanner.nextLine());

        double sumCakes = countCakes * 45.0;
        double sumWaffles = countWaffles * 5.80;
        double sumPancakes = countPancakes * 3.20;

        double allCookPerDay = (sumCakes + sumWaffles + sumPancakes) * countCook;
        double totalSum = allCookPerDay * campaignDays;

        double result = totalSum - (totalSum / 8);

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

    }
}