[13020−1]\left[\begin{array}{ccc}1 & 3 & 0 \\2 & 0 & -1\end{array}\right][12300−1]
[1−30−201]\left[\begin{array}{ccc}1 & -3 & 0 \\-2 & 0 & 1\end{array}\right][1−2−3001]
[−130201]\left[\begin{array}{ccc}-1 & 3 & 0 \\2 & 0 & 1\end{array}\right][−123001]
[−13−1402]\left[\begin{array}{ccc}-1 & 3 & -1 \\4 & 0 & 2\end{array}\right][−1430−12]