package com.company;

import java.util.Scanner;

public class proba12345 {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String money = scan.nextLine();
        double sum = 0;
        double Money = 0;

        double Nuts = 2.0;
        double Water = 0.7;
        double Crisps = 1.5;
        double Soda = 0.8;
        double Coke = 1.0;

        while (!money.equals("Start")){
            Money = Double.parseDouble(money);
            sum += Money;
            if (Money != 0.2 && Money != 0.5 && Money!= 1 && Money != 2){
                System.out.printf("Cannot accept %.2f", Money);
                sum -= Money;
            }
        }
        String product = scan.nextLine();
        while (!product.equals("End")){
            product = scan.nextLine();

            if (product.equals("Nuts")){
                if (sum < Nuts){
                    System.out.println("Sorry, not enough money");
                    return;
                }
                sum -= Nuts;
            } else if (product.equals("Water")){
                if (sum < Water){
                    System.out.println("Sorry, not enough money");
                    return;
                }
                sum -= Water;
            } else if (product.equals("Crisps")){
                if (sum < Crisps){
                    System.out.println("Sorry, not enough money");
                    return;
                }
                sum -= Crisps;
            } else if (product.equals("Soda")){
                if (sum < Soda){
                    System.out.println("Sorry, not enough money");
                    return;
                }
                sum -= Soda;
            } else if (product.equals("Coke")){
                if (sum < Coke){
                    System.out.println("Sorry, not enough money");
                    return;
                }
                sum -= Coke;
            } else {
                System.out.println("Invalid product");
            }
        }
        System.out.printf("Change: %.2f ", sum);
    }
}