. # ..#  
 #.##.  ##.#..# #
 .....  #.#. . .#
# #.### #.... ..#
 ....#.##.###..  
....#..§.....    
  ......§..#  #. 
#  #.....§#.. .# 
  .#...#..3.#    
# ##....#...#. . 
#. ###..#.....###
 #. ....###.#..#.
 # ..#..   #...##
  #### .. .##.##.
    #  ... . #.#.
  # #  #..  . #. 
  ≈≈## ..   ##.. 
  ≈≈≈   # #.  ##