...       
                     #..#      
                     #...#     
                      #...#    
                       #...##  
                        #...#  
                         #..## 
                     ######WW# 
                    ##...###.##
                   ##.....##..#
                   #...#...#..#
                   #..####....#
                  ##..#  ##...#
                 ##..##   ##.##
                ##...#     ### 
  ####         ##....##        
 ##..##   #### #......#        
##....#####..####.....##       
#.......##....##.......#       
#.∩.∩.......#..........#       
#..........###.........#       
##....##..## ###......##       
 ##..######    ##.....#        
  ####         #......#        
               ##....##        
                ##..##         
                 ####