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$____________________$$$_________________________$
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$___$$______________$$$$$_____________$$_________$
$____$$$____________$$$$$___________$$$__________$
$_____$$$$$_________$$$$$________$$$$$___________$
$______$$$$$$$______$$$$$_____$$$$$$$____________$
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$_____________________$__________________________$
$_____________________$__________________________$
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