static void Main(string[] args)
{
string firstDate = Console.ReadLine();
string secondDate = Console.ReadLine();
int days = DateModifier.GetDifferenceBetweenDates(firstDate, secondDate);
Console.WriteLine(days);
}
public static void Main()
{
string firstDateAsStr = Console.ReadLine();
string secondDateAsStr = Console.ReadLine();
DateModifier currentModif = new DateModifier();
currentModif.Difference = DateModifier.GetDifferenceBetweenDates(firstDateAsStr, secondDateAsStr);
Console.WriteLine(currentModif.Difference);
}