public void TestPart1()
{
var input = @"L.LL.LL.LL
LLLLLLL.LL
L.L.L..L..
LLLL.LL.LL
L.LL.LL.LL
L.LLLLL.LL
..L.L.....
LLLLLLLLLL
L.LLLLLL.L
L.LLLLL.LL";
var lines = input.Split('\n');
var result = Day11Solver.Part1(lines);
Assert.Equal(37, result);
}
internal static void Part1()
{
var input = Input.Lines(11);
Console.WriteLine(Day11Solver.Part1(input));
}