20, 3 19, 4 18, 5 17, 6 13, 11 12, 12 11, 13 10, 14 ........................................ ........................................ ...................*.................... ................../.\................... ................./...\.................. ................/.....\................. ........*======*.......*======*......... .........\.................../.......... ..........\................./........... ...........\.............../............ ............*.............*............. .........../...............\............ ........../.................\........... ........./...................\.......... ........*======*.......*======*......... ................\...../................. .................\.../.................. ..................\./................... ...................*.................... ........................................