Exam-16.04.2019-02.EasterGifts

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

namespace _02.EasterGifts
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> gifts = Console.ReadLine().Split().ToList();

            string[] command = Console.ReadLine().Split();
            string word = command[0];

            while (word != "No")
            {
                if (word == "OutOfStock")
                {
                    string giftName = command[1];
                    for (int i = 0; i < gifts.Count; i++)
                    {
                        if (gifts[i] == giftName)
                        {
                            gifts[i] = "None";
                        }
                    }
                }
                else if (word == "Required")
                {
                    string giftName = command[1];
                    int index = int.Parse(command[2]);

                    if (index >= 0 && index < gifts.Count)
                    {
                        gifts[index] = giftName;
                    }
                }
                else if (word == "JustInCase")
                {
                    string giftName = command[1];
                    gifts[gifts.Count - 1] = giftName;
                }
                command = Console.ReadLine().Split();
                word = command[0];
            }
            List<string> finalGifts = new List<string>();

            for (int i = 0; i < gifts.Count; i++)
            {
                if (gifts[i] != "None")
                {
                    finalGifts.Add(gifts[i]);
                }
            }
            Console.WriteLine(string.Join(" ", finalGifts));

        }
    }
}