. .. ... ... ... § ####.# .# §§§§####.<..##.## §................ ....##..#........ ....#...#........ ...§.............. ##.###.##...###.#. ##.#............... ...........####.... r............(....# ###....##.####.#.# ##...##.<.# #...###%## #..##÷.##w.# #........## ###......# ∆ #....#..# ........#.# ###.......# ...#.....# #.###...... #. ##.....