. # # # . # ## # .# . . . # ## # ### # ## . # .# .. . ... # . . ... ##. . # #### ### # .. .# # #.#∆ ..#... ...## # # # .# ##. . # . # #. .. # . # # .....# #####. .# # . .# # .... . #... # . . . #.#######.#.# #. .# #...§.....#. # . . #...##H####.#. # .# #. #..# . #.## ### # . #.# ###