.... ..   ..### 
   ..  . . .#... § 
   .###...# # ....#
    #.#.....# #.#.#
    #.#.#.# ...####
     #.#.#. #∩..#  
     .#.. .#..# #  
        .....#. .# 
      ##.#. #..### 
       ##. .##.    
       #. ### ...  
       #.##.#   .. 
   ..  ##.#.#   #  
  ##.###..#.# #    
  #....##∩..#.##...
   #.#..........#  
 ..#.....#.#...##  
  #.........#...#  
 ...##....###.##.. 
     ##...#   .  # 
     #.....#       
    ...........    
  ......d......    
...............    
 ....#.....#..     
  ..###...###      
   .  .....        
      ...