❔ Trying to write to file of a Collatz Conjecture program

        static void Main(string[] args)
        {
            Random randgen = new Random();
            UnicodeEncoding encoder = new UnicodeEncoding();

            Console.ReadLine();

        start:

            var values = Array.Empty<string>();

            int selectedNum = randgen.Next();
            int x = selectedNum;

            string localPath = (@"D:\COLLATZ\" + Convert.ToString(x) + ".txt");

            Console.WriteLine("Input: {0}", selectedNum);
                
                while (x > 0)
                {
                    if (x == 1)
                    {
                        break;
                    }
                    if (x % 2 == 0)
                    {
                        x = x / 2;
                        Console.WriteLine("{0} | {1} | {2}", x, "div", Convert.ToString(x % 2));

                    }
                    else
                    {
                        x = (x * 3) + 1;
                        Console.WriteLine("{0} | {1} | {2}", x, "mul", Convert.ToString(x % 2));
                    }

                values.Append(Convert.ToString(x));

            }

            File.WriteAllLines(localPath,values);

            Console.WriteLine(String.Join(",", values));
            Console.ReadKey();

            goto start;
        }
    }
}