######          
            ##....###        
            #.......###      
            ##..###...##     
             ##..###...##    
              ##..###...##   
               #...###...### 
     #####     ##..# ##....##
  ####...### ###...#  ##....#
 ##........###....##   ###..#
##...............##    ##...#
#.............####   ###...##
#............##    ###...### 
 #..........##   ###...###   
 ##.#....#.##  ###....##  ## 
    ##..####  ##....###  #.##
     #..##   ##...###   #...#
     ##..##  #..########..#  
      ##..#  ##..###.....#   
     ##...#   ##........##   
    ##...##    #.........### 
    #...##     #..........:# 
    #...##     #...........# 
    ##...#     ##.......#### 
    ##...##     ###...###    
   ##.....##      #..##      
   #...∩...#     ..###       
   #.......#    ...          
   ##..∩..##    ##           
    ##...##                  
     #####