I know this is better than the others, so ignore theirs
-----5----------9------------9------------------
------7-5---------10-9---------12-10---------5-7
-----------------------------------------5-7---- play
-7-7------11-11--------12-12---------5-5-------- twice
-7-7------11-11--------12-12---------5-5--------
-5-5------9--9---------10-10---------5-5--------
...........
1st time
only