.       
          .#   ..#.     ..       
         .#.####..##..# .    .   
    # #    ..#.#. .. .. .#  ..#  
  # . .#   ...#.#.#   .#.###..#  
     #. ### # ##..#####.#...#.#  
  . .  #. .###...#v.. .........  
. .  ..#.v ..v ...v..v...v ..#   
    ...... vvv......vvvvvv####   
  ..  ## ...v....v.v.vv.....#    
 .#   #  .vv.v.  v..#v.vv..##    
  ....    ..vvv.vv #..v.v...#    
   ## ....v #####.#####vv...###  
    # v....##### #.#####..vvv.#  
      ... .##  # ..#####...##.#  
    #.. v..####v.φ.#####....##v# 
     .  v..#..v....#####..%#  .# 
 #  .  ... v. .. v.# ###...#  .. 
   . .#... .v v#  #### #..    #.#
  . .## ..   v v #  ##         .#
  #  #. .... v. ########       ..
#  ## #.# v .v # #  #  #         
    . .  ........... ...         
 .  .  # ..    ... ..            
 #        ..  #.... . #          
     .    # .#...#. .            
    # .#   . #   . .             
     .    .      .   #           
    #              .             
         .       .   .           
                       .         
                     #           
                     .