Tanks

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

namespace _3_Tanks_Collector
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> ownedTanks = Console.ReadLine().Split(", ").ToList();
            int countOfCommands = int.Parse(Console.ReadLine());

            for (int i = 1; i <= countOfCommands; i++)
            {
                List<string> commands = Console.ReadLine().Split(", ").ToList();
                if (commands[0] == "Add")
                {
                    if (!ownedTanks.Contains(commands[1]))
                    {
                        Console.WriteLine("Tank successfully bought");
                        ownedTanks.Add(commands[1]);
                    }
                    else
                    {
                        Console.WriteLine("Tank is already bought");
                    }
                }
                else if (commands[0] == "Remove")
                {
                    if (ownedTanks.Contains(commands[1]))
                    {
                        Console.WriteLine("Tank successfully sold");
                        ownedTanks.Remove(commands[1]);
                    }
                    else
                    {
                        Console.WriteLine("Tank not found");
                    }
                }
                else if (commands[0] == "Remove At")
                {
                    if (int.Parse(commands[1]) >= 0 && int.Parse(commands[1]) < ownedTanks.Count)
                    {
                        ownedTanks.RemoveAt(int.Parse(commands[1]));
                        Console.WriteLine("Tank successfully sold");
                    }
                    else
                    {
                        Console.WriteLine("Index out of range");
                        continue;
                    }

                }
                else if (commands[0] == "Insert")
                {
                    if (int.Parse(commands[1]) >= 0 && int.Parse(commands[1]) < ownedTanks.Count)
                    {
                        if (!ownedTanks.Contains(commands[2]))
                        {
                            ownedTanks.Insert(int.Parse(commands[1]), commands[2]);
                            Console.WriteLine("Tank successfully bought");
                        }
                        else
                        {
                            Console.WriteLine("Tank is already bought");
                        }
                    }
                    else
                    {
                        Console.WriteLine("Index out of range");
                        continue;
                    }
                }
            }
            Console.WriteLine(string.Join(", ", ownedTanks));
        }
    }
}