public static string Encrypt(string text, int key)
        {
            int result = 0;
            byte[] bytes = Encoding.ASCII.GetBytes(text);
            char chara;
            foreach (var item in bytes)
            {
                Console.WriteLine(System.Convert.ToInt32(item));
                result = System.Convert.ToInt32(item) + key;
                chara = (char)result;
                text += chara.ToString();
            }

          return text;