.### ..#          
         ... #..    #     
          ..##.#    .     
           .. .#   #Y     
  ≈         .#.#   Y#   ##
 #≈≈        #. # # .## ..#
   ≈#.  ####...#.##. #...#
  ≈≈.. ##_Y#..F #.#...#..#
 #   .##.#F..##. #. ......
 #≈. #....F.##.....##.....
 .≈. #....###.....##    ##
    ...#..#  .. ##..#     
. .#..#.. .#.###.##...#   
 .......###... .## .. #   
 ......#.... ###. # .#    
. #....####.....  ..##    
#..#       # . .          
.#   ##     ##