########                                                     
##......#######                                #####  #####   
#.............#               ∆                .....###...####
#..####.#####.#          ..                  ###.# #.##.......
#..#.÷.....##.#########  .#               #  #...# #(((....#  
#..#.##.#...#.........###.#               #. #...###(.##.#....
#..#.##.......#.##.#......## #.#.##       #.##...(((#c##c#   #
#..<....#...###.......###..[. ....#       #......#.....((#    
####..####### #..#......#.### #...#       ###.#.#####.####    
   ##.#       #..###..#.#.#   #...#   #######.#.#   #.#       
    #.#       #..###......#   #...#   #.....(.#..   ...       
     .#       ........#.#######...#####.####..#### ....#      
     .#      ..#.#.......#...............###..#   .....#     ∆
     .#          #.##........................... ....|.#      
                 #. ###..#...............#.#.#####...!        
                 #  #....######)..#####.<#....                
                    #.##.#    #...#   #.......                
                   ... ..#    #...#   .........               
                  .##  ###    #...#   ####.....               
                  ∆           #....       ...                 
                              ######                          
                                                              
                                    ∆