..#     
          ..### . 
   ##     .... .. 
   #.. ## ...#.#  
 .  ..##.#....    
 ... #..#.#.#     
  #...#....#  ### 
    ##..∩..###..# 
    #....#......# 
  .##..##...#*..# 
  #..#. #.##.##.# 
 #.. . ...#.##  # 
 #. ..#.###.   .#.
 . ## ####..###. .
     ## #.###...#.
     #.##.##.....#
      . #...# ..  
     #.#...#..# ##
     ##..# .......
..   #...#.#..## #
#.   ##.......... 
  ### ...#####..##
 #...#..#..#  . .#
 #.#..# ....#  .##
 #.....  .# #     
 #..#.# .##       
 . ..# # #        
. #.#....#        
   # # . #  #