..  ...  ##.
 .###.###.###.###..#
...#...#...#...#... 
 .................  
 ....∩..........##  
   ........#.....#  
  .# ..#..#...#..#  
#.#...  .#....#..#  
.  . ..†)#uG4#...#  
# . . . #.#u.....#  
...  #.##........#  
.   #.# #........#  
    ..._.........#  
  # ......#.....##  
   .# #...#.....#   
 #..  ..#........   
     ...........##  
    ..... # # #.