Cypher Roulette

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

namespace cypherRoulette
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            string phrase = "";
            string word1 = "";
            string word2 = "";
            int spin = 0;


            for (int i = 0; i < n; i++)
            {
                word1 = "";

                string word = Console.ReadLine();
                word1 = word;
                if (word.Equals("spin"))
                {
                    spin += 1;
                    word = "";
                    i -= 1;
                }
                if (spin % 2 == 0)
                {
                    phrase = phrase + word;
                }
                else
                {
                    phrase = word + phrase;
                }
                if (word1.Equals(word2))
                {
                    phrase = "";
                }

                word2 = word1;
            }
            Console.WriteLine(phrase);
        }
    }
}