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