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---------------------------------------------------------------------- x2
-5-5-5-5-5----------6-6-6-6-6----------7-7-7-7-7----------6-6-6-6-6---
-5-5-5-5-5----------6-6-6-6-6----------7-7-7-7-7----------6-6-6-6-6---
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-0-0-0-0-0----------0-0-0-0-0----------0-0-0-0-0----------0-0-0-0-0--- x2
-5-5-5-5-5----------6-6-6-6-6----------7-7-7-7-7----------6-6-6-6-6---
-5-5-5-5-5----------6-6-6-6-6----------7-7-7-7-7----------6-6-6-6-6---