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\documentclass[12pt]{article}
\usepackage{amsmath}  
\input amssym
\pagestyle{myheadings}
%%%%% Output %%%%%
\textwidth=16.4cm        \textheight=23.2cm \evensidemargin=-.2cm
\oddsidemargin=-.2cm \topmargin=-.8cm

\begin{document}
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\renewcommand{\theequation}{\thesection.\arabic{equation}}
\title{Title}

\author{Author1 and Author2\footnote{
        Email addresses: {\tt email1,
                                email2}} \\
Institution}
\date{\today}

\maketitle
\begin{abstract}
This is the abstract.
\end{abstract}
\section{Section 1}
\setcounter{equation}{0}
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\begin{thebibliography}{99}
\bibitem{1} Reference 1
\end{thebibliography}
\end{document}