b.....# 
            .....  
          ###...#  
         ##.?...   
         ......#   
      #.  #.#..##  
      #.###.##..###
      ............#
       #.......@..#
       #..........#
    .###..........#
    ..............#
     ####.##...##.#
..####....###...#.#
#........## #.#.#..
 ..##<........#..  
    ##.#####.      
     ..#           
    #..#           
    ..##