-----------------------------------------------------------|
---------3-----------3-----------3-----------3-------------|
-------0---0-------0---0-------0---0-------0---0-----------|
-----4-------4---4-------4---4-------4---4-------4---------|
---2-----------2-----------0-----------0-------------------|
-----------------------------------------------------------|


-----------------------------------------------------------|
---------3-----------3-------------------------------------|
-------0---0-------0---0-------0-----0---------------------|
-----4-------4---4-------4---4-----4-----------------------|
-----------------------------------------------------------|
---3-----------3-----------2-----0-------------------------|


-----------------------------------------------------------|
---------3-----------3-----------3-----------3-------------|
-------0---0-------0---0-------0---0-------0---0-----------|
-----4-------4---4-------4---4-------4---4-------4---------|
---2-----------2-----------0-----------0-------------------|
-----------------------------------------------------------|


-----------------------------------------------------------|
---------3-----------3-------------------------------------|
-------0---0-------0---0-------0-----0---------------------|
-----4-------4---4-------4---4-----4-----------------------|
-----------------------------------------------------------|
---3-----------3-----------2-----0-------------------------|


-----------------------------------------------------------|
-------3-----3---------3-----3---------3-----3-------------|
-----4-----4---------4-----4---------4-----4---------------|
-----------------------------------------------------------|
---2-----2-----2^0-----------------2-----2-----2^0---------|
-------------------2-----2-----2^0-----------------2---2^3-|


-----------------------------------------------------------|
-------3-----3---------3-----3---------3-----3-------------|
-----4-----4---------4-----4---------4-----4---------------|
-----------------------------------------------------------|
---2-----2-----2^0-----------------2-----2-----2^0---------|
-------------------2-----2-----2^0-----------------2---2^3-|