###########   
         ...........+!  
         ...........#!! 
       ####.........### 
    ...................#
   ....................#
  .............Z# .....#
 ..............M##.....#
 ..............W.......#
 ..............Z....#..#
...................##   
.......∩∩..........#    
...................##   
 ...................#..#
 ......................#
 ......................#
  ..............##.....#
   .............# .....#
    ...................#
     .................. 
      #####.........##  
         ...........+$  
        ∩...........#   
         ###########