using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CypherRoulette
{
    class CypherRoulette
    {
        static void Main(string[] args)
        {
            int number = int.Parse(Console.ReadLine());


            string specialCommand = "spin";
            string stringBox = "";
            int specialCheckerForReset = 0;
            string wordCheckerForReset = "";
            int lamp = 0;
            for (int i = 1; i <= number; i++)
            {

                string randomString = Console.ReadLine();

                if (wordCheckerForReset==randomString)
                {
                    stringBox = "";
                    wordCheckerForReset = "";
                    continue;
                }
                wordCheckerForReset = randomString;


                if (randomString==specialCommand)
                {
                    if (lamp==1)
                    {
                        lamp = 0;
                    }
                    else
                    {
                        lamp = 1;
                    }
                    i--;
                    specialCheckerForReset++;
                    if (specialCheckerForReset == 2)
                    {
                        stringBox = "";
                        specialCheckerForReset = 0;
                        lamp = 0;
                    }
                    wordCheckerForReset = "";
                    continue;

                }
                else
                {
                    specialCheckerForReset = 0;
                }
                if (lamp==0)
                {
                    stringBox += randomString;
                }
                else
                {
                    stringBox = randomString + stringBox;
                }

            }
            Console.WriteLine(stringBox);
        }
    }
}