public void TestDifferenceCounting()
        {
            var adapters    = Day10.ParseAdapters("Advent_of_Code_2020.Day10.SampleInput.txt");
            var differences = Day10.GetDifferences(adapters);

            Assert.Equal(22, Day10.CountSpecificDifferences(differences, 1));
            Assert.Equal(10, Day10.CountSpecificDifferences(differences, 3));
        }
        public void TestArrangements()
        {
            var adapters = Day10.ParseAdapters("Advent_of_Code_2020.Day10.SampleInput.txt");

            Assert.Equal(19208, Day10.CountAllArrangements(adapters));
        }