If Z= 2197 and R= 729. How would J be written in that code?

$Z Code\Rightarrow 26\Rightarrow \frac{26}{2}\Rightarrow 13\iff 133 =2197$

$R Code \Rightarrow 18\Rightarrow \frac{18}{2}\Rightarrow 9 \iff 93 =729$

Similarly,  $J Code \Rightarrow 10\Rightarrow \frac{10}{2}\Rightarrow 5\iff 53=125$