using System;
using System.Linq;
using System.Collections.Generic;

namespace apps
{
    class Program
    {
        static string Get() { return Console.ReadLine(); }
        static string JoinListToString(List<string> list)
        {
            string joinedString = string.Empty;
            for (int i = 0; i < list.Count; i++)
            {
                joinedString += list[i];
            }
            return joinedString;
        }
        static void Main()
        {
            string RawActivationKey = Get();

            List<string> SplitRawActivationKey = new List<string>();
            foreach (char c in RawActivationKey) { SplitRawActivationKey.Add(c.ToString()); }


            while (true)
            {
                string command = Get();
                if (command == "Generate") { break; }
                else
                {
                    string[] parts = command.Split(">>>").ToArray();
                    if (parts.Length == 2)
                    {
                        string value = parts[1];
                        if (RawActivationKey.Contains(value))
                        {
                            Console.WriteLine($"{RawActivationKey} contains {value}");
                        }
                        else
                        {
                            Console.WriteLine($"Substring not found!");
                        }
                    }
                    if (parts.Length == 4)
                    {
                        int indexStart = int.Parse(parts[2] );
                        int indexEnd = int.Parse(parts[3]);
                        string Case = parts[1];

                        if (Case == "Upper")
                        {
                             
                            while (indexStart < indexEnd)
                            {
                                SplitRawActivationKey[indexStart] = SplitRawActivationKey[indexStart].ToUpper();
                                indexStart++;
                            }

                        }
                        else
                        {
                            while (indexStart < indexEnd)
                            {
                                SplitRawActivationKey[indexStart] = SplitRawActivationKey[indexStart].ToLower();
                                indexStart++;
                            }
                        }
                        RawActivationKey = JoinListToString(SplitRawActivationKey);
                        Console.WriteLine(RawActivationKey);
                    }
                    if (parts.Length == 3)
                    {
                        int indexStart = int.Parse(parts[1]);
                        int indexEnd = int.Parse(parts[2]);
                        while (indexStart < indexEnd)
                        {
                            SplitRawActivationKey[indexStart] = "";
                            indexStart++;
                        }
                        RawActivationKey = JoinListToString(SplitRawActivationKey);
                        Console.WriteLine(RawActivationKey);
                    }
                }
            }

            Console.WriteLine($"Your activation key is: {RawActivationKey}");
        }
    }
}