|---------------------------------------------------------------------------|
|---------------------------------------------------------------------------|
|--8--9--8------------------------------------------------------------------|
|-----------9-------6--6--7--7--------7--6----------------------------------|
|--------------------------------------------9--9--7-----7------------------|
|---------------------------------------------------------------------------|

|---------------------------------------------------------------------------|
|--5---4---------------5---4------------------------------------------------|
|----------6---4---------------6---4----------------------------------------|
|---------------------------------------6--6--7--7-------4--4--6------------|
|---------------------------------------------------------------------------|
|---------------------------------------------------------------------------|

|---------------------------------------------------------------------------|
|---------------5---------------------------4-------------------------------|
|--------6---------6-----6-----------6---------6-----6----------------------|
|-----6-----6---------6-----------6-----6---------6-------------------------|
|--4---------------------------3--------------------------------------------|
|---------------------------------------------------------------------------|