$$$$$$_$$$$$$$_$$$$$$$_$$$$$$_$$$$$$_$$$$$$_$$$$$$
$____$_$__$__$_$__________$___$____$_$______$_____
$$$$$$_$__$__$_$$$$$$$____$___$$$$$$_$$$$$__$$$$$_
$____$_$_____$_______$____$___$____$_$______$_____
$____$_$_____$_$$$$$$$____$___$____$_$______$_____