Adding and Subtracting Matrices

What is [ \begin{bmatrix} 3 & 3 \ 3 & 3 \end{bmatrix}

• \begin{bmatrix} 2 & 0 \ 0 & 0 \end{bmatrix}- \begin{bmatrix} 0 & 3 \ 0 & 0 \end{bmatrix}-] $$- \begin{bmatrix} 0 & 0 \\ 3 & 0 \end{bmatrix}- \begin{bmatrix} 0 & 0 \\ 0 & 2 \end{bmatrix}=?$$