. . . . . . . . .. .# . ... .. . . .. .... #.... . ..... ...... ## #.... ...#.# ..###...... .... ... .. ##... # .# .##.#..#... ..#..# ##...#...# . .. ##....#..## . . .. #.#.###...# ...###. #......z.## # ##.....##.....zz..#.## #..# ......##.zz#....# #... #....#....z...#..# # ... #.#...#z.#..#.. ##.#.#.#.......##### # #...#.##....#...# # .(#.#.... z....# .. ##....###.##....# ∩# .......### ....# ..##.#....# #..#. ##.... #. zz# ### ..##. ..#..# ...# .. ##### ... .## ## #