using System;
using System.Linq;

namespace _01._Email_Validator
{
    class Program
    {
        static void Main(string[] args)
        {
            string email = Console.ReadLine();

            while (true)
            {
                string input = Console.ReadLine();

                if (input == "Complete")
                {
                    break;
                }

                var tokens = input.Split().ToList();
                string command = tokens[0];

                switch (command)
                {
                    case "Make":
                        if (tokens[1] == "Upper")
                        {
                            email = email.ToUpper();
                            Console.WriteLine(email);
                        }
                        else
                        {
                            email = email.ToLower();
                            Console.WriteLine(email);
                        }

                        break;
                    case "GetDomain":
                        int count = int.Parse(tokens[1]);
                        if (count <= email.Length)
                        {
                            int startIdex = email.Length - count;
                            string subStr = email.Substring(startIdex);
                            Console.WriteLine(subStr);
                        }

                        break;

                    case "GetUsername":
                        if (email.Contains("@"))
                        {
                            int index = int.Parse(email.IndexOf('@').ToString());
                            int lenght = index - 0;
                            string subStr = email.Substring(0, index);
                            Console.WriteLine(subStr);
                        }
                        else
                        {
                            Console.WriteLine($"The email {email} doesn't contain the @ symbol.");
                        }


                        break;

                    case "Replace":
                        char ch = char.Parse(tokens[1]);
                        if (email.Contains(ch))
                        {
                            email = email.Replace(ch, '-');
                            Console.WriteLine(email);
                        }
                        break;

                    case "Encrypt":
                        var charArr = email.ToCharArray();
                        foreach (var item in charArr)
                        {
                            Console.Write((int)item + " ");
                        }
                        Console.WriteLine();

                        break;
                }
            }
        }
    }
}