01.2.06CharityCampaign

import java.util.Scanner;

public class ex06CharityCampaign {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int daysCount = Integer.parseInt(scanner.nextLine());
        int cookerCount = Integer.parseInt(scanner.nextLine());
        int cakesCount = Integer.parseInt(scanner.nextLine());
        int waffles = Integer.parseInt(scanner.nextLine());
        int pancakes = Integer.parseInt(scanner.nextLine());

        int cakesPrice = cakesCount * 45;
        double wafflesPrice = waffles * 5.80;
        double pancakesPrice = pancakes * 3.20;
        double profit = (cakesPrice + wafflesPrice + pancakesPrice) * cookerCount * daysCount;
        double totalProfit = profit - profit / 8;

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