................   
  #...............   
  #...............   
 .................   
..................   
..................   
..........∩........  
..........∩......... 
.....................
.....................
.................... 
 ##...............#  
  #........Z......##.
..M.......Z..Z.......
..........Z.ZZZ......
........#####ZZ......
.............MZ......
..........∩..Z.......
#####################