......##.#...
                                            ##...........#
                                           .#....#........
                                            ....∩.........
                                             #............
 ###..o........o                           .##............
 #§#. .#.#. .#.#                           .........$.....
#§§oo§o.o...o.oo                           .......<.......
##§#oo.oo. ... o                           ...........o.o.
 ∩....ooo....o.                            ............o.o
 #∩#.#.#.#.#.#o#                           #.........@....
 ###..oo.o..o.oo                           ........##...o.
    #..ooo.o....                           ........# ....#
    ###..o......                           ....#....  ...#
      ###.....##                           ....###..  ..##
         ######