public override Day Run()
{
dayOfMonth = 4;
stopwatch.Start();
answer_part1 = Passport.CheckPassportsFromFile("input/day4.txt").ToString();
answer_part2 = Passport.ValidatePassportsFromFile("input/day4.txt").ToString();
return(this);
}
public void TestPassportsFromFile()
{
Assert.Equal(2, Passport.CheckPassportsFromFile("input/day4.txt"));
}