foreach (var letter in secretWord)
        {
           tempCode += letter;
        }
        string secretWordToString = tempCode.ToString();
        int mask = 0;

        while (secretWordToString.Length>1)
        {
            mask = 0;

            for (int i = 0; i < secretWordToString.Length; i++)
            {
                mask += Convert.ToInt32(secretWordToString[i].ToString());
            }

            secretWordToString = mask.ToString();
        }

        mask = Convert.ToInt32(secretWordToString);