package com.company;

import java.util.*;
import java.util.stream.Collectors;

public class InventoryManager2 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        Set<Item> allItems = new HashSet<>();
        Set<String> names = new HashSet();


        while (input != "exit") {
            if (input.contains("add")) {
                String name = input.split(" ")[1];
                Double price = Double.parseDouble(input.split(" ")[2]);
                String type = input.split(" ")[3];
                Item item = new Item(name, price, type);

                if(!names.contains(name)) {
                    allItems.add(item);
                    names.add(name);
                    System.out.printf("Ok: Item %s added successfully%n", name);
                } else {
                    System.out.printf("Error: Item %s already exists%n", name);
                }

            } else if (input.contains("filter")) {
                String filterType = input.split(" ")[2];

                switch (filterType) {
                    case "type":
                        String itemType = input.split(" ")[3];
                        String result = allItems.stream().sorted(Comparator.comparing(Item::getPrice).thenComparing(Item::getName))
                                .filter(item -> item.type.equals(itemType))
                                .limit(10)
                                .map(Item::toString)
                                .collect(Collectors.joining(", ", "Ok: ", ""));

                        if(result.length() < 5) {
                            System.out.printf("Error: Type %s does not exist%n", itemType);
                        } else {
                            System.out.println(result);
                        }
                    case "price":
                        if (input.split(" ").length == 7) {
                            Double minPrice = Double.parseDouble(input.split(" ")[4]);
                            Double maxPrice = Double.parseDouble(input.split(" ")[6]);
                            String result2 = allItems.stream().sorted(Comparator.comparing(Item::getPrice).thenComparing(Item::getName))
                                    .filter(item -> item.getPrice() >= minPrice && item.getPrice() <= maxPrice)
                                    .limit(10)
                                    .map(Item::toString)
                                    .collect(Collectors.joining(", ", "Ok: ", ""));
                            System.out.println(result2);

                        } else if(input.contains("from")) {
                            Double minPrice = Double.parseDouble(input.split(" ")[4]);
                            String result2 = allItems.stream().sorted(Comparator.comparing(Item::getPrice).thenComparing(Item::getName))
                                    .filter(item -> item.getPrice() >= minPrice)
                                    .limit(10)
                                    .map(Item::toString)
                                    .collect(Collectors.joining(", ", "Ok: ", ""));
                            System.out.println(result2);


                        } else if(input.contains("to")) {
                            Double maxPrice = Double.parseDouble(input.split(" ")[4]);
                            String result2 = allItems.stream().sorted(Comparator.comparing(Item::getPrice).thenComparing(Item::getName))
                                    .filter(item -> item.getPrice() <= maxPrice)
                                    .limit(10)
                                    .map(Item::toString)
                                    .collect(Collectors.joining(", ", "Ok: ", ""));
                            System.out.println(result2);

                        }
                }
            }

            input = scanner.nextLine();
        }
    }
}

class Item {
    public String name;
    public Double price;
    public String type;

    public Item(String name, Double price, String type) {
        this.name = name;
        this.price = price;
        this.type = type;
    }

    public Double getPrice() {
        return price;
    }

    public String getName() {
        return name;
    }

    @Override
    public String toString() {
        return String.format("%s(%.2f)", name, price);
    }
}