\[\begin{array}{ll} \begin{array}{l} {}_{-\!}407 \\ \,\,\,\,\,\,\underline{\Box} \end{array} & \left| \begin{array}{l} \underline{63} \\ \Box. \end{array} \right. \\ \,\,\,\,\,\,\Box \end{array}\]