. . . # . . . .# #.. # #.# # # .. ... . . ..# . ## #.. .. ..... #.#.. #.# #.... ... . . #.#.. ######### # #...............# # ## .#. ########.# ## .. #. . y#.# . # #.#..# ## # #.# ...... # # #.#.# . .#..#.######.# # # . ..#.....H..# # . .#..##########. .. .... . .... .. . . . . . .#. .. . # . ..# . ## # # ≈ . . . # .