. ... # .. . ....# ..... .# .. .. .... ... ......###.## . ... .. #... # . .....# .. .## #. ..... ....# #.. ..#.....#.# .#. ..s. .. #...## ..... .. . ...###.## ∩..# . . .##...## ...# .. ...... .#. ...## ##.## ... ..............###...###.# .. .....#.....#.#.....#. # #......##[ .##........... .. . . ##.###.#.....#... ... .. #... ####...###.# ..# #... ##.## #.##..# ..... ##...###...... .#. .#.....#....... #..........# # #.#.....#s.##..##. ####...###........ ##.## #........ #... #.##..##. #... ..# .# ..#.. #.. # .. ... #.. ##..