######             
     ###....##            
     #..W....#            
   #...###..##            
  #...###..##             
 #...###..##              
#W..# #.W.#               
 .W#  #..##     #####     
  #   #...### ###...###   
      ##....###........#  
       ##...............# 
        ####.............#
           ##............#
            ##..........# 
             ##.#....#.## 
              ####..##    
                ##..#     
               ##..##     
               #..##      
               #...##     
               ##...##    
                ##...#    
                ##...#    
                #...##    
               ##...##    
              ##.....##   
              #...∩...#   
              #.......#   
              ##..∩..##   
               ##...##    
                #####