free
_____________________________$$$__$$$$_________________$$$__________
_$$$$$$$$$$$$$__$$$$_________$$$__$$$$_______________$$$$$$$$_______
$$$$$$$$$$$$$$$_$$$$________$$$$__$$$$___________$$$_$$$$$$$$$$_____
$$$$$$____$$$$$_$$$$________$$$$__$$$$__________$$$$__$$$$$$$$$$____
_$$$$$_____$$$$_$$$$_______$$$$___$$$$_________$$$$$__$$$$_$$$$$$___
_$$$$$___$$$$$__$$$$_______$$$$___$$$$$______$$$$$$$__$$$$___$$$$$__
_$$$$__$$$$$____$$$$_______$$$$__$$$$$$_____$$$$$$$___$$$$____$$$$__
_$$$$$$$$$______$$$$______$$$$___$$$$$$$__$$$$$$$$$___$$$_____$$$$__
$$$$$$$_________$$$$______$$$$___$$$$$$$$$$$$__$$$___$$$$____$$$$___
$$$$$$$_________$$$$_____$$$$____$$$_$$$$$$$___$$$___$$$$____$$$$___
$$$$$$$$$$$_____$$$$_____$$$$____$$$___$$$____$$$$___$$$___$$$$$$___
_$$$_$$$$$$$$___$$$$____$$$$$____$$$__________$$$____$$$$$$$$$$_____
_$$$_____$$$$$___$$$$__$$$$$$____$$$__________$$$___$$$$$$$_________
_$$$____$$$$$$___$$$$$$$$$$$____$$$$__________$$$___$$$$____________
$$$$$$$$$$$$$____$$$$$$_$$$$____$$$__________$$$_____$$$____________
$$$$$$$$$$$________$$$___$$$$___$$$__________$$_____$$$$____________
$$$$$$$_____________________________________________$$$$____________
_$$_________________________________________________$$$_____________