.
                    .#
                   ...
                ##... 
     .     #####.#.## 
  ##  ### ##.#.#..?..#
 #........ ..#.....#  
.#.  .....#.#.#h#     
... .. .##...h.##     
..  ..# #....h#b##    
 .. .  #..#..#.bb...  
   ..  .#..h.# Z.... b
...... ...##   ..#####
 . .#...# ##.# ..#  .#
   ..... #.#.# ..#   #
 #.   # #  .   ..##   
 .   #. # . .         
.#.. ##.. ..#..       
 ...      #... .      
 ..   . #    =#       
 ..   ..              
       ..