tenTask

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

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

        String[] input = scanner.nextLine().split(", ");
        // Create a list to store the schedule
        List<String> schedule = new ArrayList<>();
        // Add each lesson to the list
        for (String lesson : input) {
            schedule.add(lesson);
        }

        String command = scanner.nextLine();
        while (!command.equals("course start")) {

            String[] tokens = command.split(":");

            String action = tokens[0];
            String lessonTitle = tokens[1];
            switch (action) {
                case "Add":

                    if (!schedule.contains(lessonTitle)) {
                        schedule.add(lessonTitle);
                    }
                    break;
                case "Insert":

                    int index = Integer.parseInt(tokens[2]);
                    if (!schedule.contains(lessonTitle)) {
                        schedule.add(index, lessonTitle);
                    }
                    break;
                case "Remove":
                    // Remove the lesson, if it exists
                    if (schedule.contains(lessonTitle)) {
                        schedule.remove(lessonTitle);
                        // Remove the exercise, if it exists
                        String exercise = lessonTitle + "-Exercise";
                        if (schedule.contains(exercise)) {
                            schedule.remove(exercise);
                        }
                    }
                    break;
               case "Swap":
    // Change the place of the two lessons, if they exist
    String otherLessonTitle = tokens[2];
    if (schedule.contains(lessonTitle) && schedule.contains(otherLessonTitle)) {
        // Get the indices of the lessons
        int firstIndex = schedule.indexOf(lessonTitle);
        int secondIndex = schedule.indexOf(otherLessonTitle);
        // Swap the lessons
        schedule.set(firstIndex, otherLessonTitle);
        schedule.set(secondIndex, lessonTitle);
        // Swap the exercises, if they exist
        String firstExercise = lessonTitle + "-Exercise";
        String secondExercise = otherLessonTitle + "-Exercise";
        // Check if the first lesson has an exercise
        boolean hasFirstExercise = schedule.contains(firstExercise);
        // Check if the second lesson has an exercise
        boolean hasSecondExercise = schedule.contains(secondExercise);
        if (hasFirstExercise) {
            // Remove the first exercise
            schedule.remove(firstExercise);
            // Insert the first exercise after the second lesson
            schedule.add(secondIndex + 1, firstExercise);
        }
        if (hasSecondExercise) {
            // Remove the second exercise
            schedule.remove(secondExercise);
            // Insert the second exercise after the first lesson
            schedule.add(firstIndex + 1, secondExercise);
        }
    }
    break;

                case "Exercise":

                    String exercise = lessonTitle + "-Exercise";
                    if (schedule.contains(lessonTitle) && !schedule.contains(exercise)) {
                        int lessonIndex = schedule.indexOf(lessonTitle);
                        schedule.add(lessonIndex + 1, exercise);
                    } else if (!schedule.contains(lessonTitle)) {
                        // If the lesson doesn't exist, add the lesson at
                        // the end of the course schedule, followed by the Exercise.
                        schedule.add(lessonTitle);
                        schedule.add(exercise);
                    }
                    break;
            }
            // Read the next command
            command = scanner.nextLine();
        }
        scanner.close();
        // Print the whole course schedule
        for (int i = 0; i < schedule.size(); i++) {
            System.out.println((i + 1) + "." + schedule.get(i));
        }
    }
}