$/*$ Given a pointer to an aisle, a section index, and a space index, toggle the

$*$ item in the given space index of the section at the given section index in

$*$ the given aisle. Toggling means that if the space was previously empty, it

$*$ should now be filled with an item, vice$-$versa.

$*$

$*$ Can assume the section index is a valid index $(0-3$ inclusive$).$

$*$ Can assume the spaces index is a valid index $(0-9$ inclusive$).$

$*/$

void toggle$\_$space$($unsigned long$*$ aisle, int index, int space$\_$index$)\{$

$//$ TODO: implement this method

$\}$