111223

--12-12-12-----12--15--------
------------13---------------
-------------------------12--
----------------------------------------------------------
-----------------------------

|----------------------------------12--15-17--13-15--12-----------||-13-----------------12----------------------------------13-15-12-|
|------12--------14------15-14--12--------------------------------||-----------14----------------------------------------------------|
|-----------------------------------------------------------------||-----------------------------------------------------------------| x2

|-15-14-13-------------------------------15-14-13---------20--20-20-|----------16--17--------13-----13-15-------------16--17------------
|------------------13-14-----14-------------------------------------
|-------------------------------------------------------------------|-------------------------------------------------------------------
|--------------------------------------------------------------------15-14-13--------------------------------------------|
----------16--17--------13-----13-15----16---15---13-|
------------------13-14-----14-----------------------|-----------------------------------------------------|
-----------------------------------------------------|-----------------------------------------------------| x2

--------------------12-------------------------------12--
--13-13--13--13-15-----13-----------13-13--13--13-15-----...