public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int expectedamount = Integer.parseInt(scanner.nextLine());
        int total = 0;
        double totalcard = 0;
        double totalcash = 0;
        int countcash = 0;
        int countcard = 0;
        int countpayments = 0;
        while(true){
            String nextLine = scanner.nextLine();
            if(nextLine.equals("End")){
                System.out.println("Failed to collect required money for charity.");
                break;
            }
            int price = Integer.parseInt(nextLine);
            countpayments++;
            if(countpayments % 2 == 1){
                if(price < 100){
                    System.out.println("Product sold!");
                    totalcash += price;
                    total +=price;
                    countcash++;
                }else {
                    System.out.println("Error in transaction!");
                }
            }else{
                if(price > 10){
                    System.out.println("Product sold!");
                    totalcard += price;
                    total +=price;
                    countcard++;
                }else {
                    System.out.println("Error in transaction!");
                }
            }
            if(total >= expectedamount){
                System.out.printf("Average CS: %.2f\n", totalcash / countcash);
                System.out.printf("Average CC: %.2f", totalcard / countcard);
                break;
            }
        }
    }