Calculation Problem

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Numerics;

namespace ConsoleApplication3
{
    class Program
    {
        static string ReverseString(string result)
        {
            char[] reversedResult = result.ToCharArray();
            Array.Reverse(reversedResult);
            return new string(reversedResult);
        }
//Поради някаква причина ми изкарва резултата наобратно (вместо abc примерно, ми дава cba) та затова съществува горния метод
        static void Main(string[] args)
        {
            string[] userInput = Console.ReadLine().Split(new char[] {' '}, StringSplitOptions.RemoveEmptyEntries);
            for (int i = 0; i < userInput.Length; i++)
            {
                string inputWord = userInput[i];
                BigInteger decResult = 0;
                for (int j = inputWord.Length - 1, power = 0; j >= 0; j--, power++)
                {
                    BigInteger letter = inputWord[j] - 'a';
                    decResult += letter * BigInteger.Pow(23, power);
                }
                BigInteger anotherDecResult = decResult;
                string result = string.Empty;
                string anotherResult = string.Empty;
                while (anotherDecResult > 0)
                {
                    BigInteger anotherLetterAsNumber = anotherDecResult % 23;
                    anotherDecResult /= 23;
                    char anotherLetterAsLetter = (char)(anotherLetterAsNumber + 'a');
                    result += anotherLetterAsLetter;
                }
                Console.Write(ReverseString(result) + " = ");
                Console.Write(decResult);
                Console.ReadLine();
            }
        }
    }
}