32. King Golden Horn picked up the treasure gourd and shouted to Sun Wukong: “Sun”, “Xing”, and “Zhe” each represent a digit, and the product of the two three-digit numbers 'SunXingZhe' and 'ZheXingSun' is 78445. Do you dare to say the sum of these two three-digit numbers?” Sun Wukong calculated with his fingers and couldn't help but answer a number, and was immediately sucked into the treasure gourd. It turned out that this treasure could trap people inside if they answered the question correctly. The number Sun Wukong answered was $\qquad$
\begin{tabular}{c}
$\mathbf{3 2}$ \\
\hline 686
\end{tabular}