#               
                  #.#.              
                  #....#########    
                    #...<hh..h..    
                    #.##########    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                        #..         
                        #..         
                        #..         
                        #..         
                        #..         
                        #..         
                        #?.#########
                     ## #..∩.......#
                     ...#.ba........
                     ..........###.#
                    ...........###.#
                    ..##...........#
                    ............####
                     ...........#   
                     ....######.#   
                     ....     #.#   
                     ...      #.#   
                     ..       #.#   
                              #..   
                              ###