# .. ..      
     ##.. #.##.?   
     #...#..(#Xw   
     #........w..+ 
    ##..#. ?..#..##
    #...#X.X..#...#
    ##.*XXΛ.X.....#
    #..vXX#.#....# 
...v.#v.XXw#...#   
#..  #.#.*vXw.#    
#    #..##v.###    
   ....#.X###      
  ... .#.          
  #.###.           
  .. ..            
 .. #.             
    .