Reverse Number

    static int ReverseDigits(int unreversedNumber)
        {
            int reversedNumber = 0;
            //List<int> containerArray = new List<int>();
            StringBuilder reversedNumberStringBuilder = new StringBuilder();

            while (unreversedNumber > 0)
            {
                int currentDigit = unreversedNumber % 10;
                unreversedNumber /= 10;
                //containerArray.Add(currentDigit);
                reversedNumberStringBuilder.Append(currentDigit);
            }

            //for (int index = 0; index < containerArray.Count; index++)
            //{
            //    reversedNumber = reversedNumber * 10 + containerArray[index];
            //}

            //return reversedNumber;

            reversedNumber = int.Parse(reversedNumberStringBuilder.ToString());
            return reversedNumber;
        }