\documentclass[aspectratio=169]{beamer}

% parse most utf-8 correctly
\usepackage[utf8]{inputenc}

% better graphics
\usepackage{graphicx}

% beamer settings
\title{<++>}
\author{<++>}
\institute{<++>}
\usetheme{Copenhagen}

\begin{document}
\maketitle

<++>

\end{document}