package com.company;

import java.util.Scanner;

public class Main {

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

        double sizeOfVineyard = Double.parseDouble(scanner.nextLine());
        double grapesForOneSquareMeter = Double.parseDouble(scanner.nextLine());
        double wantedWine = Double.parseDouble(scanner.nextLine());
        double workers = Double.parseDouble(scanner.nextLine());

        double kilogramsOfGrapes = (sizeOfVineyard * grapesForOneSquareMeter) * 0.4;
        double litersWine = kilogramsOfGrapes / 2.5;

        if (litersWine >= wantedWine) {
            double left = litersWine - wantedWine;
            double winePerPerson = Math.ceil(left / workers);
            System.out.printf("Good harvest this year! Total wine: %.0f liters.%n", Math.floor(litersWine));
            System.out.printf("%.0f liters left -> %.0f liters per person.", left, winePerPerson);
        } else {
            double wineLess = Math.floor(wantedWine - litersWine);
            System.out.printf("It will be a tough winter! More %.0f liters wine needed.", wineLess);
        }
    }
}