#...#                             
                     #...#                             
                     #...#                             
                     #...#                             
                     #...#                             
                     #...#                             
                     #...#                             
       #.#           #...#           ∆                 
       #.#           #...##                            
       #.#           ##...########         ..          
       #.####         #..........#      #  #.  ########
       #.#..#         #..........#      #. #.  #.O.†..#
 #######.#..#         #..........#      #..#.  #.####.#
 ........#..#      #####.........#      #..#.  #.#  #.#
  ######<#..#      #..........##.#      #....###.#  #.#
  #.....O#..###    #.###.###..##.########......#O#  #.#
  #...........######.###...#................>....#  #O#
  ###########......#.##....#...#...###############  #O#
       .....(.####...(.._......#...#..   .....)..#  #.#
∆      ########  ##..#....##.###...#.# #########.####.#
                  #..#...###.# #...#.# #....O...<.....#
                  #..###.###.# #...#)# #.##############
                  #..........# #...#.#                 
                  #......##### #...#(#                 
                  ######.#     #...#(#                 
                       #.#     #...#O#                 
                       #.#     #...#(#                 
                       #.#######...#(#                 
                       #...O.......(.#                 
                       ########.######                 
                              #.#                      
                              #.#                      
                              #.#                      
                              #..    ∆                 
                              ###