package MidExamPrep.second;

import java.sql.SQLOutput;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

public class FriendlistMaintenance {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String[] some = scanner.nextLine().split(", ");
        ArrayList<String> friendList = new ArrayList<>(Arrays.asList(some));

        int blackListedNames = 0;
        int lostNames = 0;

        String input = scanner.nextLine();
        while (!input.equals("Report")) {
            String[] tokens = input.split(" ");
            String command = tokens[0];
            switch (command) {
                case "Blacklist":
                    String blacklist = tokens[1];
                    if (friendList.contains(blacklist)) {
                        int getIndex = friendList.indexOf(blacklist);
                        friendList.set(getIndex, "Blacklisted");
                        System.out.println(String.format("%s was blacklisted.", blacklist));
                        blackListedNames++;


                    } else {
                        System.out.println(String.format("%s was not found.", blacklist));
                    }

                    break;
                case "Error": {
                    int index = Integer.parseInt(tokens[1]);
                    String names = friendList.get(index);
                    if (!friendList.get(index).equals("Blacklisted") && !friendList.equals("Lost")) {
                        lostNames++;
                        System.out.println(String.format("%s was lost due to an error.", names));
                        friendList.set(index, "Lost");

                    }
                }
                break;
                case "Change": {
                    int index = Integer.parseInt(tokens[1]);
                    String newName = tokens[2];
                    String newIndex = friendList.get(index);
                    String oldName = friendList.get(index);
                    if (isValidIndex(friendList, index)) {
                        friendList.set(index, newName);
                        System.out.println(String.format("%s changed his username to %s."
                                , oldName, newName));


                    }
                    break;
                }
            }
            input = scanner.nextLine();

        }


        System.out.println(String.format("Blacklisted names: %d", blackListedNames));
        System.out.println(String.format("Lost names: %d", lostNames));
        for (String friend : friendList) {
            System.out.print(friend + " ");
        }
    }

    private static boolean isValidIndex(ArrayList<String> friends, int index) {
        return 0 <= index && index < friends.size();
    }


}