##    ###            
    #.    ...            
    #.    #..            
    #.#####.#            
    #.....#.#            
  # #...#(#.#            
###.#.#<.@#.#########.## 
#....................... 
#.#.#.....#(#.......#..  
  #.###.#.#(#.#####.# .. 
  .   #.#.#(#######.##.##
 .  #.#.#.#(#...........#
.>  .......(.............
 ∆  #.#.#...(............
      #[#....(...........
      #.#................
    .....................
    ...##................
    ..  #................
    )   #.........(......
        #...........(....
        #................
        #................
        #................
         ..(.............
         ................