...... ..... #.... #.... #.... #.... #....########## #.............##### #....#<######.#...# #....#.#..........# .....s.#.+....#.#...# ##########....#.#...# +... #.# ### #... #.# ### #.# #.# #.# #.# #.# #.# ...########.####### S=.......?......... ##.########$####### #.# #.# #.. #.. .... #...