∆ ################# #.†<..S.........# #.#.####Ya#######.. .a .......#).# #.# .# #. #....# #.### .# # #.#####.#######...# .# #...............#.# .# ########.#####..#.##.# #.............(....# #............#..#.#####.. #......................S. #.............).........? #........................ ∆ #.................###.... #.............##### .#.. ###########.### # . #.# #.# ∆