\documentclass[12pt]{article}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amssymb}

%%%%%%%%%% ADDITIONAL PACKAGES %%%%%%%%%%%%%%%%%%
% If you need any additional package or you want to declare anything with \newcommand do it below, please



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% do not use \renewcommand, please 


\begin{document}
\thispagestyle{empty}
\begin{center}
\textbf{\Large{Author Author}}

\vspace{1mm}

The affiliation % preferably in English
%\refstepcounter{dummy}\label{Combinatorics}
\end{center}

\vspace{6mm}

\begin{center}
\textsc{\large{The Title}}
\end{center}

\vspace{4mm}

%%%%%%%%%% THE ABSTRACT %%%%%%%%%%%%%%%%%%%%%%%%%

%no longer than one page, please

%%%%%%%%%% END OF THE ABSTRACT %%%%%%%%%%%%%%%%%%

% if you do not have coauthors remove or comment with "%" the line below, please

This is joint work with Coauthor Coauthor, and Coauthor Coauthor.
\end{document}