Harvest

import java.util.Scanner;

public class Harvest_02 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int x = Integer.parseInt(scanner.nextLine());
        double y = Double.parseDouble(scanner.nextLine());
        int z = Integer.parseInt(scanner.nextLine());
        int workers = Integer.parseInt(scanner.nextLine());

        double wineQuantity, wineSqm, wineLiters, winePerWorker, result, totalGrape;

        totalGrape = x * y;
        wineSqm = ((40.0 * 0.01) * totalGrape)/2.5;

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