###                 
    #..                 
    #.#                 
    #.#   ##            
    #<#  ..#  #         
    #.#  #.# .#         
    #.####.##.#    #+## 
    #.........#   #...##
   ##.........#  #.....#
   #.......#.# ##.......
  ##.........###........
..............†'.a.<....
..####.......###>.b.....
#    #..>#.#.# ##.......
     ##......#   #.....#
      #.######    #...##
      #.#          #+## 
      #.                
      #.