यदि $$f(x)=\left\{\begin{array}{cc}2+2 x, & -1 \leq x< 0 \\ 1-\frac{x}{3}, & 0 \leq x \leq 3\end{array} ; g(x)=\left\{\begin{array}{cc}-x, & -3 \leq x \leq 0 \\ x, & 0< x \leq 1\end{array}\right.\right.$$, तो $$(f \circ g)(x)$$ का परिसर है