#...##..       . 
#.......      .#.
#.......#    ...#
#.....#..####....
  .....#.........
   #..∩ .........
   ##..##.a......
 ###......O......
 #.....<.........
 ##........).....
 #.#.............
.................
........#......##
##.....###......#
 ####..   .......
    #..   .....