\(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{346}\\{128}\end{array}}\\\hline{\,\,\,218}\end{array}\) \(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{673}\\{280}\end{array}}\\\hline{\,\,\,\,393}\end{array}\)
\(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{484}\\{\,\,75}\end{array}}\\\hline{\,\,\,409}\end{array}\) \(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{161}\\{\,\,90}\end{array}}\\\hline{\,\,\,\,\,71}\end{array}\)