x|-------7----7-8-----------------------| |--8-10---10---------------------------| |----------------0--0000-00-00-00000---| |--------------------------------------| |--------------------------------------| |--------------------------------------| --------12------15-13-12--------13----------| -13---13-----13---------15-13-15---11-10-11-| ----12-----12-------------------------------| --------------------------------------------| --------------------------------------------| --------------------------------------------| --------12------15-13-12--------13----------| -13---13-----13---------15-13-15---11-10-11-| ----12-----12-------------------------------| --------------------------------------------| --------------------------------------------| --------------------------------------------| ------------------------------15-13-12-13-12---| -13-15-17-15-17-13-12-13-15-----------------13-| ---------------------------12------------------| -----------------------------------------------| -----------------------------------------------| -----------------------------------------------| -------------| --10--12-----| -------------| and repeat.... -------------| -------------| -------------|