########                                    
        #......#      #... ###########              
        #......#      #....#.....#...#              
        #......###### #....#.....#...#......#       
        #...........# #....####'###..#......#       
        #...........# #.>.........#..#......#       
     ####........_..###...........#..#......#       
     #......###.......# ###.......'..#......#       
     #......#.........#   #.......#.<#......#..##..#
     #......#...'.....#   #.......#.[#......#...?..#
 #####......#'###.....#####.......#..'......#.?....#
 ..........................########..#......#......#
 ..........................+    .....#......#......#
 ..........................#  .......#.....<#......#
 ..........................#  #+###..#......#O.....#
  #....[.####'###'##+###'###      ####......#......#
  #......#....#.............        ........#......#
  #......'....#.............       .........'......#
  #......####.##..##..##'###      ..........#......#
 ..####.....#####'##..##..##      ..........#......#
 .   .#.....#......#.......#        ........##+##..#
   #........'......#.......#      ...........    ..#
   #........############'### #####...........     .#
   #######................####.....#+####+##.      #
         #................#..#.....#                
         #.......†......).#..#.....#                
         #...........))...'..#.....#                
         #...........).)..####.....#                
        ....############...........#                
        .   #<)....#   #.........^.#                
            #......#  .#...........#                
            #.###..# ..#...........#                
           ##.###..##..#.....###+###                
           #...#.......#.....'.....#                
           #...')......#.....#.....#                
           #######.##..#.....########+##            
           #.....#.######+##............            
           #.....'........ #............            
           #.....#........ #............            
           #.....#'###+#####............            
           #####...............#'##....             
               #...............#..# ...             
               #...............#..#                 
               #...............#..#                 
               #...............##.#                 
          ∆    #####.....########'###               
                   #.....#..........#               
                   #.....#..........#               
                   #....<#..........#               
                   #.....+..........#               
                   #.....##..####.###               
                   ####'###..####.#                 
                     #....#........                 
                     #....#.........                
                     #....#..........               
                     #....'........                 
                     ##############