##################      
     #.>....#.........#      
     #.####.#.#######.###    
     #.#......#   #.....#    
     #.#.##.###   #.###.###  
     #...##.#     #.# #...#  
     #......#     #.###.#w#  
#######.##### #####.....#(#  
.........#    #.....#####÷#  
...#.##..#  ###.....#   #(#  
  ....#..####.......#   #.###
...#..........#.....#   #.(.#
.....##..#.####.....#   ###(#
##.####...#.#########     #(#
 # ........#.#            #.#
   ######...##            #.#
        ##.##             #.#
         #.#         ##   #.#
         #.#    ######..  #.#
         #.###...........##.#
         #.<...#     #.....?#
         #######     ########
                             
                             
       ∆