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How to solve the following two system of matrix equations:

$A^2B+ABA+BA^2=0$ and $B^2A+BAB+AB^2=0$ simultaneously for non-singular matrix $A\in M_n(\mathbb{Z})$ and for some nilpotent matrix $B\in M_n(\mathbb{Z})$.

I am trying to find some examples for some $n=2,3,4,\ldots,$ but could not write a sage code for this that gives an example.

How to solve the following two system of matrix equations:

$A^2B+ABA+BA^2=0$ and $B^2A+BAB+AB^2=0$ simultaneously for non-singular matrix $A\in M_n(\mathbb{Z})$ and for some nilpotent matrix $B\in M_n(\mathbb{Z})$.M_n(\mathbb{Z})$such that$B^2=0$.

I am trying to find some examples for some $n=2,3,4,\ldots,$ but could not write a sage code for this that gives an example.