using System;

public class Program

{

    public static void Main()

    {

        double? Total = 27.36;

        double? Vat = 0.2;          

        double TotalInclVat = (Total ?? 0) + (Vat ?? 0 * Total ?? 0);

        double TotalInclVatExtraBrackets = (Total ?? 0) + ((Vat ?? 0) * (Total ?? 0));

        Console.WriteLine(TotalInclVat);

        Console.WriteLine(TotalInclVatExtraBrackets);

    }

}