...$.....   ∆  
     #).......      
    ##.......#      
    #........#     .
    #......).#    ..
    #........#   ...
    #........#  ....
   ##.....O..##.....
 ###..#.#...........
##...## ##..........
#..†..###..#.#....[.
#.....##..##.##.....
#.....###..### .....
##...##.##..#   ....
##....#.#..##   ....
#.).#.....##     ...
#.<.#...#..#        
#...+...#.....      
#...##..##......    
##..##..# .......   
 #.>##... ....>..   
 ...........)....   
 .<.##..##.......   
 ...#