---------------------------------------| --4-4-4-4-4-4-4---4-4-4----------------| --7-7-7-7-7-7-7---7-7-7----------------| ---------------------------------------| ---------------------------------------| ---------------------------------------|repeat a few times ---------------------------------------| ---------------------------4-4-4--4----| ---------------------------7-7-7--7----| ---------------------------------------| ---------------------------------------| ---------------------------------------| --10---10---3---1---7----7--------| --13---13---6---4---10---10-------| ----------------------------------| ----------------------------------| ----------------------------------| ----------------------------------|repeat a few times ----5--------5----------5-6-5--------------| -----6--6-6---6--6-6------------8-6--6-6---| -------------------------------------------| -------------------------------------------| -------------------------------------------| -------------------------------------------| ----5--------5------------5--6--7--8--13---| -----6--6-6---6--6-6-----------------------| -------------------------------------------| -------------------------------------------| -------------------------------------------| -------------------------------------------| -6-6-5--------5------------5--6--6---------| ------6--6-6---6---6-6--------------8-6----| -------------------------------------------| -------------------------------------------| -------------------------------------------| -------------------------------------------|