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

namespace _03._Phone_Shop
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> phones = Console.ReadLine()
                                   .Split(", ", StringSplitOptions.RemoveEmptyEntries)
                                   .ToList();
            string comad = Console.ReadLine();
            string[] comand = comad.Split();

            if (comand[0] == "Add")
            {
                phones.Add(comand[1]);
            }
             if ( comand[0] == "Remove")
            {
                phones.Remove(comand[1]);
            }
             if (comand[0] == "Bonus phone")
            {

                for (int i = 0; i < phones.Count; i++)
                {
                    if (phones[i].Contains(comand[2]))
                    {
                        phones[i] = comand[2];
                    }
                }

            }
             if (comand[0] == "Last")
            {
                for (int i = 0; i < phones.Count; i++)
                {
                    if (phones[i].Contains(comand[1]))
                    {
                        phones[phones.Count - 1] = comand[1];
                    }
                }
            }
             if( comand[0] == "End")
            {
                Console.WriteLine(string.Join(", ", phones));
            }

        }
    }
}