|--------------------------------------------------------------------------|
|-----------------------------------5-7-8-----9-7-8p-----------------------|
|--------7p5--4-----7p5--4---9p7--7-------4-5-------7p-9p------------------|
|--5-7-9--------5-5-5---5-7-5-7-9--------5---------------4-4-4-5-5-9-9-5-7-|
|---------------------7----------------------------------------------------|
|--------------------------------------------------------------------------|