----------------------------------------------------------------- ----------------------------------------------------------------- ----------------------------------------------------------------- ---------7--7--7/9--9---------9--9--9/7--7----------------------- X 4 ---7--7--5--5--5/7--7---7--7--7--7--7/5--5----------------------- ---9--9-----------------9--9------------------------------------- ----------------------------------------------------------------- ----------------------------------------------------------------- ----------------------------------------------------------------- ---0-----3--3--0-----0------------------------------------------- X 3 ------3-----------4-----4--0------------------------------------- -----------------------------------------------------------------