_____________________________------oOo-----------oOo
_____________________________--O-------O-----O-------O
_____________________________-o-----------o-o-----------o
_____________________________-O------------o------------O
-_____________________________-o------------------------o
-_____________________________---O-------------------O
---_____________________________----o--------------o
-_____________________________--------O---------O
_____________________________------------o----o
_____________________________-----------_--O