###########                                
     #.........#                                
     #.........#                 #.....#        
     #.........##                #.....#        
     #..........#                +.....+        
     #..........#                #.....#        
     #..........#                #.....#        
     #..........#                +.....#     ∆  
     #..........#                #.....### ##   
######..........#    ######      #.#.....# .    
#....'..........#    #....#      #.......#.#  # 
#.####..........######....##########.#..<#.#... 
#....'..........................................
######.)........##........####.####.##...###.###
     #)########>.+...........#.#  #.#......#    
######.#      #.##........#..#.#  #.#.#.##.#    
#......#      #.##........#..#.#  #.##...#.#    
#......#      #...........#.[..#  #......# #    
#.....################....##..##  ####..##      
#...>.'.............##....###.#      #..#       
#.....#############'##....# #.##     #..#       
#.....#     #........'....# #..#     #..#       
#######     #........#....# ##.##    #..#    ∆  
            #........######  #..#    ....       
            #........#  #######'##   ....       
            #........#  #........#              
            ##########  #........##  ...        
               .        #.........##....        
               ..       #....<...........       
               ...      #................       
               ....     #........#..#....       
               .....    #.(._....#..# ...       
               .....z####........#.(#  ..       
               .....sz).'........##..   .       
               .....z####........# ..#          
               !.....####........#  .#          
               ........###.......#              
               ........#∩'.......#              
               ####+##.###########              
                     ###                        
                                    ∆