<--12----10--------10-12----------------------> <---------------------------------------------> <-----12-----------------12---------repeat-2x-> <---------------------------------------------> <---------------------------------------------> <---------------------------------------------> <---12-------------------------------------------------------------------------> <----------12----13-----12-------------------------------------------------12--> <------9-9----9-9---9-9----9-9-12-9-11-9--12-9-9-11-9-9-12-9-9-11-9-9-12-9----9> <------------------------------------------------------------------------------> <------------------------repeat-3x---------------------------------------------> <------------------------------------------------------------------------------>