Evaluate the following expression using the values given: Find -a2 - 3b3 + c2 + 2b3 - c2 if a = 3, b = 2, and c = -3.

(-3$${\mathtt{\,-\,}}\left({\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{2}}\right){\mathtt{\,-\,}}\left({\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{3}}\right){\mathtt{\,-\,}}\left({\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{2}}\right){\mathtt{\,\small\textbf+\,}}\left({\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{3}}\right){\mathtt{\,\small\textbf+\,}}\left({\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{2}}\right) = -{\mathtt{6}}$$