Multiply Even by Odds

using System;

namespace P09.Multiply_Evens_by_Odds
{
    class Program
    {
        private static void Main(string[] args)
        {
            int n = Math.Abs(int.Parse(Console.ReadLine()));
            int result = GetMultipleOfEvensAndOdds(n);
            Console.WriteLine(result);
        }
        private static int GetMultipleOfEvensAndOdds (int n)
        {
            int sumEvens = GetSumofEvenDigits(n);
            int sumOdds = GetSumofOddDigits(n);
            return sumEvens * sumOdds;
        }

        private static int GetSumofOddDigits (int n)
        {
            int oddSum = 0;
            while (n>0)
            {
                int lastDigit = n % 10;

                if (lastDigit%2 != 0)
                {
                    oddSum += lastDigit;
                }
                n /= 10;
            }
            return oddSum;
        }

        private static int GetSumofEvenDigits (int n)
        {
            int evenSum = 0;

            while (n>0)
            {
                int lastDigit = n % 10;
                n /= 10;

                if (lastDigit % 2 == 0)
                {
                    evenSum += lastDigit;
                }

            }
            return evenSum;
        }
    }
}