(*)
________$________
_______$_$_______
______$___$______
_____$_____$_____
____$_______$____
____$_______$____
____$_______$____
____$_______$____
____$_______$____
____$_______$____
____$_______$____
____$_______$____
____$_______$____
___$__$___$__$___
__$__$_$_$_$__$__
_$__$__$$$__$__$_
_$$$____$____$$$_
_$______$______$_
$_______$_______$
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