EXAM 20 - 21 APRIL Easter Party

import java.util.Scanner;

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

        int guestNum = Integer.parseInt(scanner.nextLine());
        double priceOne = Double.parseDouble(scanner.nextLine());
        double budgetDesy = Double.parseDouble(scanner.nextLine());

        if (guestNum >=10&&guestNum<=15)
        {
            priceOne = priceOne - priceOne * 0.15;
        }
        else if (guestNum >=15 && guestNum<=20)
        {
            priceOne = priceOne - priceOne * 0.20;
        } else if (guestNum >= 20)
        {
            priceOne = priceOne - priceOne * 0.25;
        }

        double cakePrice = budgetDesy / 10;
        double finalSum = guestNum * priceOne + cakePrice;
        double residue = finalSum - budgetDesy;

        if (finalSum > budgetDesy){
            System.out.printf("No party! %.2f leva needed.",Math.abs(residue));
        } else {
            System.out.printf("It is party time! %.2f leva left.",Math.abs(residue));
        }
    }
}