CleverLily

package com.company;

import java.util.Scanner;

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

        int age = Integer.parseInt(scanner.nextLine());
        double washingMachinePrice = Double.parseDouble(scanner.nextLine());
        int singleToyPrice = Integer.parseInt(scanner.nextLine());

        int toysCount = 0;
        int moneyGiven = 10;
        int savings = 0;
        for (int birthday = 1; birthday <= age; birthday++) {

            if (birthday % 2 == 1) {
                toysCount++;
            } else {
                savings += moneyGiven;
                moneyGiven += 10;
                savings -= 1; // savings = savings - 1
            }
        }

        int profitFromToys = toysCount * singleToyPrice;
        savings += profitFromToys;

        if (savings >= washingMachinePrice) {
            System.out.printf("Yes! %.2f", savings - washingMachinePrice);
        } else {
            System.out.printf("No! %.2f", washingMachinePrice - savings);
        }
    }
}