$\begin{array}{ccccc}
& A & B & C & D\\
\times & & & & 9\\ \hline
& D & C & B& A
\end{array}$

Let $A,B,C$ and $D$ be non-negative single digit integers satisfying the cryptogram above with $A,D\ne0$. Find the value of $A\times B\times C \times D$.

Your answer seems reasonable.
Find out if you're right!