.# # ...##.##..               
   . ..##..#.....                
    #...#.......#                
#  # #.#.#X#..t.# ..             
∩# ..........#..# .##            
..##.....#u#u#..# ..#            
 ..    #...u#.#.##..##.          
) ..######X.uX.#.......          
 .## #.XX.##.#.....#             
.# .....#...###.#.#.#            
.###....#..###....#              
..###.####.##...##..#            
#.....   ####.##.  .$#           
.#.  ##. ..$..  #   ..#          
##.#..###....#       ..#         
..#..    ....         ..         
.....##  .#.#          .         
.#..#.. #   .