using System;

using System.Collections.Generic;

​

class Program

{

    static void Main()

    {

        List<string> list = new List<string>();

​

        while (true)

        {

            string command = Console.ReadLine();

​

            if (command == "END")

                break;

​

            switch (command)

            {

                case "Add":

                    string[] wordsToAdd = Console.ReadLine().Split();

                    list.AddRange(wordsToAdd);

                    break;

​

                case "Update":

                    for (int i = 0; i < list.Count; i++)

                    {

                        string word = list[i];

                        if (char.IsLetter(word[0]))

                        {

                            list[i] = char.ToUpper(word[0]) + word.Substring(1);

                        }

                    }

                    break;

​

                case "Remove":

                    int indexToRemove = int.Parse(Console.ReadLine()) - 1;

                    if (indexToRemove >= 0 && indexToRemove < list.Count)

                    {

                        list.RemoveAt(indexToRemove);

                    }

                    break;

​

                case "Search":

                    string searchWord = Console.ReadLine();

                    if (list.Contains(searchWord))

                    {

                        Console.WriteLine(searchWord);

                    }

                    else

                    {

                        Console.WriteLine("Not contained.");

                    }

                    break;

​

                case "Length":

                    int length = int.Parse(Console.ReadLine());

                    List<string> filtered = list.FindAll(word => word.Length == length);

                    if (filtered.Count > 0)

                    {

                        Console.WriteLine(string.Join("-", filtered));

                    }

                    else

                    {

                        Console.WriteLine("Not contained.");

                    }

                    break;

​

                case "Insert":

                    int insertIndex = int.Parse(Console.ReadLine()) - 1;

                    string wordToInsert = Console.ReadLine();

                    if (insertIndex >= 0 && insertIndex <= list.Count)

                    {

                        list.Insert(insertIndex, wordToInsert);

                    }

                    else

                    {

                        Console.WriteLine("There are not enough items in the list.");

                    }

                    break;

​

                case "Print":

                    if (list.Count > 0)

                    {

                        Console.WriteLine(string.Join("; ", list));

                    }

                    else

                    {

                        Console.WriteLine("Not contained.");

                    }

                    break;

            }

        }

    }

}

​