[3624]\left[\begin{array}{ll}3 & 6 \\2 & 4\end{array}\right][3264]
[4182]\left[\begin{array}{ll}4 & 1 \\8 & 2\end{array}\right][4812]
[4123]\left[\begin{array}{ll}4 & 1 \\2 & 3\end{array}\right][4213]
[41025]\left[\begin{array}{ll}4 & 10 \\2 & 5\end{array}\right][42105]