package ExamPreparation;

import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

public class Agency {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        ArrayDeque<String> ids = new ArrayDeque<>();
        ArrayDeque<String> agents = new ArrayDeque<>();

        Arrays.stream(scanner.nextLine().split("\\s+")).forEach(ids::push);
        Arrays.stream(scanner.nextLine().split("\\s+")).forEach(agents::offer);

        String line = scanner.nextLine();

        while (!line.equalsIgnoreCase("stop")) {
            String[] tokens = line.split("\\s+");
            String command = tokens[0];

            switch (command) {
                case "add-ID":
                    String newId = tokens[1];
                    ids.push(newId);
                    break;
                case "add-agent":
                    String newAgent = tokens[1];
                    agents.offer(newAgent);
                    break;
                case "remove-ID":
                    System.out.printf("%s has been removed.%n", ids.pop());
                    break;
                case "remove-agent":
                    System.out.printf("%s has left the queue.%n", agents.pollLast());
                    break;
                case "sort-ID":
                    ids = ids.stream().sorted((x, y) -> y.compareTo(x)).collect(Collectors.toCollection(ArrayDeque::new));
                    break;
            }

            line = scanner.nextLine();
        }


        while (!ids.isEmpty() && !agents.isEmpty()) {
            String id = ids.pop();
            String agent = agents.poll();

            System.out.printf("%s takes ID number: %s%n", agent, id);
        }

        while (!ids.isEmpty()) {
            System.out.println("No more agents left.");
            System.out.print("ID number: ");
            System.out.printf("%s ", ids.pop());
            System.out.println();
        }

        while (!agents.isEmpty()) {
            System.out.printf("%s does not have an ID.%n", agents.poll());
        }

    }
}