###    
  ###.###  
 ##.....## 
 #.......# 
 #.......# 
 #.......# 
  #.....#  
    #Z#    
    #M#    
  ###.###  
 ##.....## 
 #.......# 
##...∩...##
+...∩∩∩...+
##...∩...##
 #.......# 
 ##.....## 
  ###.###  
    #+#