Tabs
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-------------9--9--9-----7--7--7----5--5--5--4------------------------------|
---7--7--7------------------------------------------------------------------|
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---4-4------9--9--9-----7--7--5-----------------------------------------------|
-------7----------------------------------------------------------------------|
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-------------9--9--9----7--7--7----5--5--5--4------4-----4--9----4--5---------|
--7--7--7---------------------------------------------7-----------------------|
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