.. ###.. #.# #.... ### ... #...##..#. #.##.#...... ?......#.# #..#....# #.#.#..##### . .# #. ..#.##......#... ....... #... #.#4.....#.. # .#. #..# .# ##.##....... .#.#. # #....####.# . ## ## ## # ## #.# # # . .. # #... .# .#..#.# ... # #...####...###.# . . .#. ...#. #.##....#.. . #.#.## # #.#. .# ..# . ...#...## .#. .## ...# ##... . #####... .4### .#. ... #..#..#..#. .# . #.. # #..# #..##.. .#.# ..# ...#.. .# ..## # ####..... #... . # #...#.#..#. #∩# #_#.###... ..# # .# . # # . . .#... . ....#.