private static void Main()
        {
            // Console.WriteLine(Day1.PartOne());
            // Console.WriteLine(Day1.PartTwo());

            // Console.WriteLine(Day2.PartOne());
            // Console.WriteLine(Day2.PartTwo());

            // Console.WriteLine(Day3.PartOne());
            // Console.WriteLine(Day3.PartTwo());

            // Console.WriteLine(Day4.PartOne());
            // Console.WriteLine(Day4.PartTwo());

            // Console.WriteLine(Day5.PartOne());
            // Console.WriteLine(Day5.PartTwo());

            // Console.WriteLine(Day6.PartOne());
            // Console.WriteLine(Day6.PartTwo());

            // Console.WriteLine(Day8.PartOne());
            // Console.WriteLine(Day8.PartTwo());

            Console.WriteLine(Day9.PartOne());
            Console.WriteLine(Day9.PartTwo());
        }