...## 
      ###   ....##
  .. ##..## .....#
....##....##.....#
 ................#
 ...............# 
  .............#  
   #........#     
    #......##     
    ##....##      
     #...M#       
     #....#       
     #....#       
     #....#       
     #....#       
     #....#       
     #....#       
     #.∩∩.#       
     ######