.. .. .. .# . .#### .# . ... .#..#. u.. #.#..# #..#...#.## # ..##.#..## . #.#....#.##.#.# ..# #u#.#...# .##.###....#.#. #...#........... #.#...#..#.#.## # #.........## ........##.##.. ≈≈ #####.##..##### . #### ##.. ## . .. ## ###.