############   
          ...........#   
          ##.####.##     
     #    #...##†..#     
     #.   #.⌠.##.⌠.#     
      .    ... #...#    #
      #.   #.# ##.##  .r#
  .####.####.####.###.⌠.#
  ......................#
  .......<..........##.##
  ......................#
  .####.####.####.###.⌠.#
     ##.####.## #.#  ...#
     #...##...# ...   #.#
     #.⌠.##.⌠.# .⌠.#   .#
     #...##...# ...#     
 #.####.####.####.##     
b...................     
####################