.#                   
#    .                   
.. ##.#                  
... .#. $     ##         
.... ..  .## ..#.  .#.   
  #..#.###.##....  .#..  
...#......#....# ..#..#  
#...4.....#...#  ...#.#  
#..##..#x.#..##  ..  .   
    ##..#.3##. ##....   .
     ###.#.#...#.# .#  .#
       #..... ...# .##...
      #....##..#∩#.......
      ### #.#.###....#   
           .### #....##..
           .#§###........
           .#.§#.#..##.  
           # .... #...  #
            #..#.# .#...#
         ###..### .. ..# 
         #...#   ...#.## 
          #.. ###### ##  
       #...#. .#.......# 
        .. ##.  ... . . #
       #..  #  # #..# ..#
        # #.. # ##. . ..#
        ..#.###  ##. ... 
       ... .     #  . .#