##..                 
  #..                  
###..                  
#....      ######      
#...#      #....#      
#...########....#      
#..a##.....#....#      
#...##.....#....#      
#...##.....#....#      
+.......#'##....#######
######..#.##...........
    ....#.#####.#......
  ...#.##.......#......
#....#+########........
....  ........'........
....  ........#........
...   ........#########
      ###.....##....#  
        +.....['....#  
        #....###....#  
      ....######....#  
      ....  #<......#  
      ...   #.......#  
      ..    #.......#  
           .........#  
          #.......###  
          #.........   
          ###########