$____________________$$$____________________$
$__$_________________$$$________________$___$
$___$$______________$$$$$_____________$$____$
$____$$$____________$$$$$___________$$$_____$
$_____$$$$$_________$$$$$________$$$$$______$
$______$$$$$$$______$$$$$_____$$$$$$$_______$
$________$$$$$$$____$$$$$___$$$$$$$_________$
$___________$$$$$____$$$___$$$$$____________$
$__$$$$$$$______$$$__$$$__$$$______$$$$$$$__$
$______$$$$$$$$____$$_$_$$____$$$$$$$$______$
$__________$$$$$$$$$_$$$_$$$$$$$$$__________$
$_________________$$$_$_$$$_