.#           
              ...         #
              #.#########.#
              #.#.........#
      .       #.#.........#
      #.     ##....<......#
   .# #.##   #..#..#####..#
  #..##...# ##...)##   ∆   
  ..B...<.###.....####     
 ##........#..[##..>.#     
 #...........).......#     
##.......................  
............########...#.  
 #..........#       ##.#   
 #..........#         .#   
 ##........##          .   
 #..........#              
 #....oo....#              
 #....o.....#              
 #..........#              
 #..o.......#              
 ##.(......##              
  o(......##               
 ....######