25. Xiao Ming uses chess pieces to form a hollow square with two layers (the figure below shows the upper left corner of the square). After he finishes the inner layer, he has 60 chess pieces left. After completing the outer layer, he has 32 chess pieces left. Xiao Ming has ___ chess pieces in total.
\begin{tabular}{l}
25 \\
\hline 80
\end{tabular}