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(" -> ");

            list.add(new Tree(input[0], Integer.parseInt(input[1])));

            command = sc.nextLine();
        }

        String neededType = sc.nextLine();
        double minMeters = Double.parseDouble(sc.nextLine());
        BigDecimal usedSum = new BigDecimal(0);
        BigDecimal unusedSum = new BigDecimal(0);

        for (Tree tree : list) {
            if (tree.getType().equals(neededType) && tree.getLength() >= minMeters) {
                usedSum = usedSum.add(BigDecimal.valueOf(tree.length));

            } else {
                unusedSum = unusedSum.add(BigDecimal.valueOf(tree.length));
            }
        }

        BigDecimal price = usedSum.add(unusedSum).divide(BigDecimal.valueOf(list.size()), 2, RoundingMode.HALF_EVEN);
        BigDecimal usedLogsPrice = price.multiply(usedSum).setScale(2, RoundingMode.HALF_EVEN);
        BigDecimal unusedLogsPrice = price.multiply(unusedSum).multiply(BigDecimal.valueOf(0.25)).setScale(2, BigDecimal.ROUND_HALF_EVEN);
        BigDecimal total = unusedLogsPrice.add(usedLogsPrice).setScale(2, BigDecimal.ROUND_HALF_EVEN);

        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;
        }
    }
}