public class E06CottageScraper {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        List<Tree> list = new ArrayList<>();
        String command = sc.nextLine();

        while (!command.equals("chop chop")) {
            String[] input = command.split(" -> ");
            String type = input[0];
            int meters = Integer.parseInt(input[1]);

            Tree tree = new Tree(type, meters);
            list.add(tree);

            command = sc.nextLine();
        }

        String neededType = sc.nextLine();
        double minMeters = Double.parseDouble(sc.nextLine());

        double usedLogsSum = list.stream().filter(tree -> tree.getType().equals(neededType) && tree.getLength() >= minMeters).mapToDouble(Tree::getLength).sum();
        double unusedLogsSum = list.stream().filter(tree -> !tree.getType().equals(neededType) || tree.getLength() < minMeters).mapToDouble(Tree::getLength).sum();

        double priceToRound = list.stream().mapToDouble(Tree::getLength).average().orElse(0.0);
        double price = Math.round(priceToRound * 100.0) / 100.0;

        double usedLogsPrice = Math.round(usedLogsSum * price * 100.0) / 100.0;
        double unusedLogsPrice = Math.round((unusedLogsSum * price * 0.25) * 100.0) / 100.0;
        double total = Math.round((usedLogsPrice + unusedLogsPrice) * 100.0) / 100.0;

        System.out.printf("Price per meter: $%.2f%n", price);
        System.out.printf("Used logs price: $%.2f%n", usedLogsPrice);
        System.out.printf("Unused logs price: $%.2f%n", unusedLogsPrice);
        System.out.printf("CottageScraper subtotal: $%.2f", total);
    }

    private static class Tree {

        String type;
        int length;

        private Tree(String type, int length) {
            this.type = type;
            this.length = length;
        }

        public String getType() {
            return type;
        }

        public int getLength() {
            return length;
        }
    }
}