#.#                 
            ..#                 
          ##..                  
        # ...                   
        .#..   #                
    #####..##..#                
    #.#..R....#                 
     #....###.##               .
     #.....#...#             .  
     ##.#..#...#      .     ..# 
     #.#.....#.#         #    . 
     #...##.. .        #.#≈     
     #..#.#...#       .#.       
......#.......#### ## ....      
## .#.#. .......#. ...#..       
  #......##.###.#..  .. #.      
  ..##.###..#...## .. #..# #    
  .. ## .....#.#..  #.#   # #   
 #.    #.## ..###### #  #.      
       ## .####     ...     #   
        . #         # .#        
        .            #.#