#########                                  
  #.....[)#                                  
  #)#####)########                           
  #....##.4.......                           
  #.......<.......                           
  #.##.##.........                           
  #.##..'.........                           
  ..# ###.........                           
 .###   #.........                      ###  
 .      ..........                  ∆   ...  
#       ##########                      #.#  
                                  ..    #.#  
                                  ...   #.#  
                                   ...#.#.#  
                                    #.#.#E#  
                                     ...#E#  
                                      #.#§#  
                                #######.§.#  
                                .......§..#  
                                .......§#.#  
                                ...?...§..#  
                                ..........#  
                                ..........#  
                                ..........#  
                                ..........#∆ 
                                ...........  
                                .........#.. 
                                ...........><