_________________00_00_________________
________________00___00________________
_______________00_____00_______________
______________00_______00______________
_____________00_________00_____________
00000000000000___________00_0000000000
__00_______________ _________________00_
____00__________________________00_
______00_________******________00______
________00_____0++++++0_____00________
__________00_____******_____00_________
_________00_________________00_________
________00________0000________00_______
_______00_______00____00_______00______
______00_____00__________00_____00_____
_____00___00________________00___00____
____0000________________________0000___
___000____________________________000__