[−423−1]\left[\begin{array}{rr}-4 & 2 \\3 & -1\end{array}\right][−432−1]
[−4231]\left[\begin{array}{rr}-4 & 2 \\3 & 1\end{array}\right][−4321]
[−4−2−31]\left[\begin{array}{rr}-4 & -2 \\-3 & 1\end{array}\right][−4−3−21]
[−4−231]\left[\begin{array}{rr}-4 & -2 \\3 & 1\end{array}\right][−43−21]