Charity Campaign

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int days = Integer.parseInt(scanner.nextLine()),
                cookers = Integer.parseInt(scanner.nextLine()),
                cakes = Integer.parseInt(scanner.nextLine()),
                waffles = Integer.parseInt(scanner.nextLine()),
                pancakes = Integer.parseInt(scanner.nextLine());

        double sum = days * cookers * ((cakes * 45.00) + (waffles * 5.80) + (pancakes * 3.20));
        System.out.printf("%.2f\n", sum - sum / 8);
    }
}