using System;

​

public class Solution

    {

        public int RomanToInt(string s)

        {

            char[] arrayWithChars = s.ToCharArray();

            char[] alphabet = { 'I', 'V', 'X', 'L', 'C', 'D', 'M' };

            int[] digitAlphabet = { 1, 5, 10, 50, 100, 500, 1000 };

​

            int[] resultIndexes = new int[arrayWithChars.Length];

            int[] resultDigits = new int[resultIndexes.Length];

​

            for (var i = 0; i < arrayWithChars.Length; i++)

            {

                var inputCharIndexInAlphabet = Array.IndexOf(alphabet, arrayWithChars[i]);

                if (inputCharIndexInAlphabet != -1)

                {

                    resultIndexes[i] = inputCharIndexInAlphabet;

                }

            }

            for (var i = 0; i < resultIndexes.Length; i++)

            {

                try

                {

                    if (resultIndexes[i] <= resultIndexes[i - 1])

                    {

                        resultDigits[i] = digitAlphabet[resultIndexes[i]];

                        resultDigits[i + 1] = digitAlphabet[resultIndexes[i + 1]];

                    }

                    else if (resultIndexes[i] > resultIndexes[i - 1])

                    {

                        continue;

                    }

                    else if (resultIndexes[i] > resultIndexes[i + 1])

                    {

                        resultDigits[i] = digitAlphabet[resultIndexes[i]];

                    }

                }

                catch

                {

                    try

                    {

                        if (resultIndexes[i] <= resultIndexes[i + 1])

                        {

                            resultDigits[i] = digitAlphabet[resultIndexes[i]];

                            resultDigits[i + 1] = digitAlphabet[resultIndexes[i + 1]];

                        }

                        else if (resultIndexes[i] > resultIndexes[i + 1])

                        {

                            resultDigits[i] = digitAlphabet[resultIndexes[i]];

                        }

                    }

                    catch

                    {

                        resultDigits[i] = digitAlphabet[resultIndexes[i]];

                    }

                }

            }

​

​

            foreach (var el in resultIndexes)

            {

                Console.WriteLine("index is " + el);

            }

            foreach (var el in resultDigits)

            {

                Console.WriteLine("digit is " + el);

            }

            return arrayWithChars.Length;

        }

    }

​

public class Program

{

    public static void Main()

    {

        Solution a = new Solution();

        Console.WriteLine(a.RomanToInt("CDXLIV"));

    }

}