[2321]\left[\begin{array}{ll}2 & 3 \\2 & 1\end{array}\right][2231]
[−53−31]\left[\begin{array}{ll}-5 & 3 \\-3 & 1\end{array}\right][−5−331]
[5331]\left[\begin{array}{ll}5 & 3 \\3 & 1\end{array}\right][5331]
[2−52−3]\left[\begin{array}{ll}2 & -5 \\2 & -3\end{array}\right][22−5−3]
