easter shopping

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Threading;

namespace ConsoleApp1
{
    class Exam
    {
        static void Main(string[] args)
        {
            List<string> shops = Console.ReadLine().Split().ToList();

            int count = int.Parse(Console.ReadLine());

            for (int i = 0; i < count; i++)
            {
                string[] command = Console.ReadLine().Split().ToArray();

                if (command[0] == "Include")
                {
                    shops.Add(command[1]);
                }
                if (command[1] == "first")
                {
                    int shopCount = int.Parse(command[2]);

                    if (shops.Count >= shopCount)
                    {
                        shops.RemoveRange(0, shopCount);
                    }
                }
                if (command[1] == "last")
                {
                    int shopCount = int.Parse(command[2]);

                    if (shops.Count >= shopCount)
                    {
                        shops.Reverse();
                        shops.RemoveRange(0, shopCount);
                        shops.Reverse();
                    }
                }
                if (command[0] == "Prefer")

                {
                    int firstShop = int.Parse(command[1]);
                    int secondShop = int.Parse(command[2]);

                    if (firstShop >= 0 && firstShop < shops.Count && (secondShop >= 0 && secondShop < shops.Count))
                    {
                        string temp = shops[firstShop];
                        shops[firstShop] = shops[secondShop];
                        shops[secondShop] = temp;
                    }
                }
                if (command[0] == "Place")
                {
                    int index = int.Parse(command[2]) + 1;
                    if (index >= 0 && index < shops.Count)
                    {
                        shops.Insert(index, command[1]);
                    }
                }
            }

            Console.WriteLine("Shops left:");
            Console.WriteLine(string.Join(" ", shops));
        }
    }
}