First, start with this..

|---------------------------------------------------------------------|
|---------------------------------------------------------------------|
|---9----9--7----9--------------9----7--------------------------------|
|---9----9--7----9--------------9----7--------------------------------|
|---------------------9-~-11------------------------------------------|
|---------------------------------------------------------------------|

x6

Then this..

|---------------------------------------------------------------------|
|---------------------------------------------------------------------|
|---------------------------------------------------------------------|
|---9----7----5----4--------------------------------------------------|
|---7----5----3----2--------------------------------------------------|
|---------------------------------------------------------------------|
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