import java.util.Scanner;

public class Task7 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();
        double sum = 0.0;

        while (!"Start".equals(input)) {
            input = scanner.nextLine();

            double inputAsDouble = Double.parseDouble(input);

            if (inputAsDouble == 0.1 || inputAsDouble == 0.2 || inputAsDouble == 0.5
                    || inputAsDouble == 1 || inputAsDouble == 2) {
                sum += inputAsDouble;
            } else {

                System.out.printf("Cannot accept %.2f%n", inputAsDouble);
            }
            input = scanner.nextLine();

        }

        String product = scanner.nextLine();


        while (!"End".equals(product)) {
            switch (product) {
                case "Nuts": {
                    if (sum >= 2) {
                        sum -= 2;
                        System.out.println("Purchased Nuts");

                    } else {
                        System.out.println("Sorry, not enough money");
                    }

                }

                case "Water": {
                    if (sum >= 0.7) {
                        sum -= 0.7;
                        System.out.println("Purchased Water");
                    } else {
                        System.out.println("Sorry, not enough money");
                    }


                }
                break;
                case "Crisps": {
                    if (sum >= 1.5) {
                        sum -= 1.5;
                        System.out.println("Purchased Crisps");
                    } else {
                        System.out.println("Sorry, not enough money");
                    }


                }
                break;
                case "Soda": {
                    if (sum >= 0.8) {
                        sum -= 0.8;
                        System.out.println("Purchased Soda");
                    } else {
                        System.out.println("Sorry, not enough money");
                    }


                }
                break;
                case "Coke": {
                    if (sum >= 1.0) {
                        sum -= 1.0;
                        System.out.println("Purchased Coke");
                    } else {
                        System.out.println("Sorry, not enough money");
                    }


                }
                break;
                default: {
                    System.out.println("Invalid product.");
                }
                break;

            }
            product = scanner.nextLine();
        }

        System.out.printf("Change: %.2f", sum);


    }
}