\documentclass{slides}
\usepackage{graphicx}
\usepackage{color}
\newcommand{\Hrule}{\rule{\linewidth}{2mm}}
\thispagestyle{empty}
%\onlyslides{9,10}
\begin{document}

\setlength{\fboxrule}{3pt}\setlength{\fboxsep}{2mm}

\begin{slide}
\begin{center}
\input{erice15_new.tex}
\end{center}
\end{slide}
\end{document}
\begin{slide}
\begin{center}
\input{erice16_new.tex}
\end{center}
\end{slide}
\end{document}
