[−2−3−1−2]\left[\begin{array}{ll}-2 & -3 \\-1 & -2\end{array}\right][−2−1−3−2]
[−23−1−2]\left[\begin{array}{cc}-2 & 3 \\-1 & -2\end{array}\right][−2−13−2]
[−2−3−12]\left[\begin{array}{cc}-2 & -3 \\-1 & 2\end{array}\right][−2−1−32]
[23−1−2]\left[\begin{array}{cc}2 & 3 \\-1 & -2\end{array}\right][2−13−2]
