[3−33−3]\left[\begin{array}{ll}3 & -3 \\3 & -3\end{array}\right][33−3−3]
[3−3−33]\left[\begin{array}{rr}3 & -3 \\-3 & 3\end{array}\right][3−3−33]
[5623]\left[\begin{array}{ll}5 & 6 \\2 & 3\end{array}\right][5263]
[−5−623]\left[\begin{array}{rr}-5 & -6 \\2 & 3\end{array}\right][−52−63]
