A7 Sequence 12--9----------9------------------------------------------|------------- -------10---------10---------10---------------------------|------------- -----------12---------12--9------12--9------12--9---------|--9---------- ----------------------------------------11---------11--7--|-----11------ ----------------------------------------------------------|------------- ----------------------------------------------------------|------------- --------------------------------------------------| --------------------------------------------------| --------------------------------------------------| 7------11--7---------7----------------------------| ---10---------10--7-----10--7-----10--7-----------| -------------------------------9---------9--5~~~--|