.#            
                    .#            
                   #.##           
       #####.#######..#           
       #.#.. #........#           
  ## ###.#.# #........#           
###.##...#.# #........##          
...........###.........#          
.....................#.#          
...........######+##.#.#          
...........#    #.##...#####      
..#....o...#    #....$.....#      
  #........#    #####..###.#      
  #........#        #..#          
  #........#        ##.#  ∆       
  #........###########.#          
  #....................##         
  ......................#         
            ............######    
            ..........#.#....#    
            ..........#...##.#    
            ###########.##...#    
                      #......#.#  
                      #.>..#...## 
                      #.#..[......
                      #.#########.
                      #..         
                      #.          
                      ..          
                      #.          
                      ##