using System;
using System.Text;
using System.Collections.Generic;

class FakeTextMarkUpLanguage
{
    static Dictionary<string, string> tags = new Dictionary<string, string>();
    static StringBuilder global = new StringBuilder();
    static Stack<string> tagove = new Stack<string>();
     const string del = "<del>";
    static void Main()
    {
        tags.Add("<upper>", "</upper>");
        tags.Add("<lower>", "</lower>");
        tags.Add("<toggle>", "</toggle>");
        tags.Add("<del>", "</del>");
        tags.Add("<rev>", "</rev>");
        int n = int.Parse(Console.ReadLine());
        for (int i = 0; i < n; i++)
        {
            string input = Console.ReadLine();
            global.AppendLine(input);
        }
        while (true)
        {
            if (global.ToString().Contains("<") == false) break;
            for (int i = 0; i < global.Length; i++)
            {
                if (global.ToString().IndexOf(del) > global.ToString().IndexOf(tags[del]) ||
                    (global.ToString().IndexOf(del) == -1 && global.ToString().IndexOf(tags[del]) != -1))
                {
                    int index = global.ToString().IndexOf(tags[del]);
                    index+= tags[del].Length;
                    string toBeDeleted = global.ToString().Substring(0, index);
                    global = new StringBuilder(global.ToString().Replace(toBeDeleted,string.Empty));
                    break;
                }
                else if (global[i] == '<')
                {
                    string tag = GetTag(i);
                    if (tag == del)
                    {
                        int endClosedDel = global.ToString().IndexOf(tags[del]) + tags[del].Length;
                        global.Remove(i, endClosedDel - i);
                        break;
                    }
                    else
                    {
                        tagove.Push(tag);
                        i += tag.Length - 1;
                    }
                }
                else
                {
                    int openTag = global.ToString().IndexOf('<', i + 1);
                    if (global[openTag + 1] == '/')
                    {
                        ProcessData(i, openTag);
                        break;
                    }
                }
            }
        }
        Console.WriteLine(global.ToString());
    }
    private static void ProcessData(int start, int end)
    {
        string toBeModified = global.ToString().Substring(start, end - start);
        string currentTag = tagove.Pop();
        switch (currentTag)
        {
            case "<upper>":
                for (int i = start; i < end; i++)
                {
                    global[i] = char.ToUpper(global[i]);
                    char ch = global[i];
                }
                break;
            case "<lower>":
                for (int i = start; i < end; i++)
                {
                    global[i] = char.ToLower(global[i]);
                    char ch = global[i];
                }
                break;
            case "<toggle>":
                for (int i = start; i < end; i++)
                {
                    if (global[i] >= 65 && global[i] <= 90)
                    {
                        global[i] = char.ToLower(global[i]);
                        char ch = global[i];
                    }
                    else if (global[i] >= 97 && global[i] <= 122)
                    {
                        global[i] = char.ToUpper(global[i]);
                        char ch = global[i];
                    }
                }
                break;
            case "<rev>":
                StringBuilder tmp = new StringBuilder(toBeModified.Length);
                foreach (var item in toBeModified)
                {
                    tmp.Append(item);
                }
                for (int i = tmp.Length - 1,j = start; i >= 0; i--,j++)
                {
                    global[j] = tmp[i];
                }
                break;
        }
        int startOpenTag = 0;
        for (int i = start; i >= 0; i--)
        {
            if (global[i] == '<')
            {
                startOpenTag = i;
                break;
            }
        }
        global.Remove(end, tags[currentTag].Length);
        //Console.WriteLine(global.ToString());
        global.Remove(startOpenTag, start - startOpenTag);
        //Console.WriteLine(global.ToString());
    }
    private static string GetTag(int start)
    {
        int endOpenTag = global.ToString().IndexOf('>', start + 1);
        string tag = global.ToString().Substring(start, endOpenTag - start + 1 );
        return tag;
    }
}