#.#     
      ..#     
      #.#     
      #.#     
      #.#     
      #.#     
      #.#     
      #z#     
  #####'######
  #...z......#
  #..z.......#
  #..........#
  #..........#
  +..........+
  #..........#
  ...........#
 ............#
#............#
#C.≈≈≈≈≈.....