.   .              
                                                   
                               # .   ##.           
                              #     #              
                            .∩ . #.   .#           
                               .  .# . ###         
                             .. .#..#.  . ##  .    
                        .       #...##. ##         
                       .#. #####...... #.#$. #     
                      .  ..#.#.#.#..#[..#..  #  .  
                           ....#...#.. .####.      
                        ... #.#..#...##...        #
                      .     #...#.. #.. ## ...     
                           ###.X#.....#. # #...    
                          ##.4..#.(.  .# #    #    
                        ###..........#.#           
                        #..S#..#...### .#          
                        #.###.......#  ##          
                        ##..##..#.#.#              
                        #. #.#.....##              
                        #..  ##.#.##               
                        #.#.##....#                
                   ###  .# .....##                 
                    N.  S#.#......#                
                     #. .#.#.##..#                 
                    N.#..##....#.#                 
                   ..#..#.. # ..#                  
                  .#.#....4#  #..#                 
                   . ......    ##.#                
                   . ...#  #      ..               
                    ..## ..#       #               
                    .    #.?                       
                   .     ..                        
                         .