private static int GetMultiplePfEvensAndOdds(int n)
intsumEvens = GetSumOfEvenDigits(n);
int sumOdds = GetSumOfOddDigits(n);
public static void Main()
int n = int.Parse(Console.ReadLine());
int product = GetMultiplePfEvensAndOdds(n);
Console.WriteLine(product);
private static int GetSumOfEvenDigits(int n);