public void Day25Test1()
        {
            // arrange
            var path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);

            path = Path.GetFullPath(Path.Combine(path, "..", "..", ".."));

            var inputFile = Directory.GetFiles(path + @"/TestInput", "Day25_1.txt")[0];
            var day25     = new Day25(inputFile);

            // act
            var result1 = day25.PartOne();

            // assert
            Assert.Equal("14897079", result1);
        }
        public void TestPartOneSample()
        {
            string input = "";

            Assert.Equal(180, Day25.PartOne(input.Split("\n")));
        }
        public void TestPartOneInput()
        {
            string input = System.IO.File.ReadAllText("./Inputs/Day25.in");

            Assert.Equal(180, Day25.PartOne(input.Split("\r\n")));
        }