[1−224]\left[\begin{array}{cc}1 & -2 \\2 & 4\end{array}\right][12−24]
[1224]\left[\begin{array}{ll}1 & 2 \\2 & 4\end{array}\right][1224]
[1101]\left[\begin{array}{ll}1 & 1 \\0 & 1\end{array}\right][1011]
[2637]\left[\begin{array}{ll}2 & 6 \\3 & 7\end{array}\right][2367]
