1.gtr ------------------------------------------------------------|| ------------------------------------------------------------|| ------------------------------------------------------------|| ------------------------------------------------------------|| --2--2--2-2-2-2-5--5--5-5-5-5-7--7--7-7-7-7-8--8--8-8-8-8---|| --0--0--0-0-0-0-3--3--3-3-3-3-5--5--5-5-5-5-6--6--6-6-6-6---|| 2.gtr ----------------------------------------------------------|| ----------11~~~~8--7-----------11~~~~8--7-------10~~~~~~~~|| --9-----9-------------9------9-------------9--------------|| ----------------------------------------------------------|| ----------------------------------------------------------|| ----------------------------------------------------------|| ----------------------------------------|| ----------------------------------------|| ----------------------------------------|| ----------------------------------------|| ----------------------------------------|| --8----8--7----7-----5----5--2----2-----|| --6----6--5----5-----3----3--0----0-----||