$______$________________$$$$_________________________$
_$___$_______________$_____________________________$
__$_$___$$$$_$_____$_$$$$__$___$_$___$__$$$__$_____$
__$_$___$__$_$_____$_$___$_$___$_$__$$_$___$_$_____$
___$$___$__$_$$$$__$_$___$_$$$$$_$_$_$_$_____$$$$__$
___$____$__$_$___$_$_$___$_$___$_$_$_$_$_____$___$_$
___$____$__$_$___$_$_$___$_$___$_$$__$_$___$_$___$__
_$$____$___$_$$$$__$__$$$__$___$_$___$__$$$__$$$$__$