...   ####   ..
.... ##..## ...
...M##....##M..
...............
...............
#..............
   #..MM....#  
    #.Z....#   
    ##....##   
     #....#    
     #....#    
     #....#    
     #....#    
     #....#    
     #....#    
     #....#    
     #.∩∩.#    
     ######