3zadacha

import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

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

        List<String> journal = Arrays.stream(scanner.nextLine().split(", ")).collect(Collectors.toList());
        String commands = scanner.nextLine();

        while (!commands.equals("Craft!")) {

            String[] command = commands.split(" - ");

            if (command[0].equals("Collect")) {

                String item = command[1];

                boolean isExist = false;

                for (int i = 0; i < journal.size(); i++) {
                    if (journal.get(i).equals(item)) {
                        isExist = true;
                        break;
                    }
                }
                if (isExist == false) {
                    journal.add(item);

                }

            } else if (command[0].equals("Drop")) {

                String itemForRemove = command[1];
                boolean isExist = false;

                for (int i = 0; i < journal.size(); i++) {
                    if (journal.get(i).contains(itemForRemove)) {
                        journal.remove((i));
                        break;
                    }
                }





            } else if (command[0].contains("Combine Items")) {

                String [] oldAndNew = command[1].split(":");
                String oldItem = oldAndNew[0];
                String newItem = oldAndNew[1];

                for (int i = 0; i <journal.size() ; i++) {
                    if(journal.get(i).contains(oldItem)){
                        journal.add(i+1,newItem);
                        break;
                    }

                }



            } else if (command[0].equals("Renew")) {

                String item = command[1];

                for (int i = 0; i <journal.size(); i++) {

                    if(journal.get(i).equals(item)){
                        journal.remove(i);
                        journal.add(item);
                        break;

                    }

                }

            }
            commands = scanner.nextLine();

        }

        String result = String.join(", ",journal);
        System.out.println(result.trim());

    }
}