|--------------------------------------------|                      
|--------------------------------------------|
|-----------------------------3-3-3----------|
|-3-3-3-3-----1--3-3-3-3------3-3-3-3-3-3-3--|
|-3-3-3-3--1-3---3-3-3-3------1-1-1-3-3-3-3--|
|-1-1-1-1--------1-1-1-1------------1-1-1-1--|

|------------------------|
|------------------------|
|--5-5-5--3-3-3----------|
|--5-5-5--3-3-3--3-3-3-3-|
|--3-3-3--1-1-1--3-3-3-3-|
|----------------1-1-1-1-|