public void Part2_Answer()
        {
            var day22  = new Day22_Part2();
            var map    = day22.LoadMap(PUZZLE_INPUT);
            var actual = day22.Part2(map, 10000000);

            Assert.Equal(2511957, actual);
        }
        public void Part2b()
        {
            var day22  = new Day22_Part2();
            var map    = day22.LoadMap(@"..#
#..
...");
            var actual = day22.Part2(map, 10000000);

            Assert.Equal(2511944, actual);
        }