设 $\boldsymbol{A}=\left(\begin{array}{ccc}2 & 1 & -2 \\ 0 & 0 & 2 \\ 0 & 0 & 2\end{array}\right), \boldsymbol{A}^{-1}$ 为 $\boldsymbol{A}$ 的逆矩阵，则满足 $\boldsymbol{A} \boldsymbol{B}=\boldsymbol{A}^{-1}(\boldsymbol{B}+\boldsymbol{E})+\boldsymbol{E}$ 的方阵 $\boldsymbol{B}=$ $\_\_\_\_$
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