ProgBasicsExam12January2019-E02Renovation

import java.util.Scanner;

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

        double budget = Double.parseDouble(scanner.nextLine());
        double width = Double.parseDouble(scanner.nextLine());
        double length = Double.parseDouble(scanner.nextLine());
        double a = Double.parseDouble(scanner.nextLine());
        double h = Double.parseDouble(scanner.nextLine());
        double pricePerTiles = Double.parseDouble(scanner.nextLine());
        double labourPrice = Double.parseDouble(scanner.nextLine());

        double squareMeters = width * length;
        double tilesSquareMeters = a * h / 2;
        double neededTiles = Math.ceil((squareMeters / tilesSquareMeters) + 5);

        double totalSum = (neededTiles * pricePerTiles) + labourPrice;

        if (totalSum <= budget) {
            System.out.printf("%.2f lv left.", budget - totalSum);
        } else {
            System.out.printf("You'll need %.2f lv more.", totalSum - budget);
        }

    }
}