ThreeBrothers

import java.util.Scanner;

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

        double firstTime = Double.parseDouble(scanner.nextLine());
        double secondTime = Double.parseDouble(scanner.nextLine());
        double thirdTime = Double.parseDouble(scanner.nextLine());
        double fatherTime = Double.parseDouble(scanner.nextLine());

        double totalTime = 1 / (1 / firstTime + 1 / secondTime + 1 / thirdTime);
        double timeWithRest = (0.15 * totalTime) + totalTime; //1.15 * totalTime

        double diff = fatherTime - timeWithRest; //8 - 6 = 2

        System.out.printf("Cleaning time: %.2f%n",timeWithRest);
        if(diff > 0){
            System.out.printf("Yes, there is a surprise - time left -> %d hours.",(int)(Math.floor(diff)));
        }else {
            diff = Math.abs(diff);// -2 -> 2
            System.out.printf("No, there isn't a surprise - shortage of time -> %d hours.", (int)(Math.ceil(diff)));
        }



    }
}