\documentclass[a4paper,10pt]{article}
\usepackage{geometry}[2cm,2cm,2cm,2cm]

\begin{document}

\begin{center}

\LARGE\bf *** Title ***

\vspace{1cm}

\Large\bf *** Author 1 Name *** \\
\large\bf *** Affiliation (Author 1) ***

\vspace{0.3cm}

\Large\bf *** Author 2 Name *** \\
\large\bf *** Affiliation (Author 2) ***

%\vspace{0.3cm}
%
%\Large\bf *** Author 3 Name *** \\
%\large\bf *** Affiliation (Author 3) ***


\vspace{0.5cm}

\large\bf Abstract %Do not chage this line
\end{center}

\vspace{1cm}

{\it Include abstract here.}


\end{document}
