###########                        
..........#                        
..........#   ∆                    
..........+                        
......l...###                      
....>.....'.#                      
..........#.#                      
.....((...#.#                      
..(.......#.##########             
..........#...........       ∆     
..........#...........       ∆     
..........#...########+#####       
   .......#...####.........###     
          #...##...[.........##    
          #...#......#'#......#    
          #...'.....##<##.....+    
          #...'.....##>##.....+    
          #...#......#+#......#  ∆ 
          #...##.............##    
          #...####.........###     
          #...#  #####+#####      ∆
          #....                    
          #...