\documentclass[a4paper,11pt]{article}

\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{graphicx}
\usepackage{fancyhdr}
\usepackage{paralist}
\usepackage{geometry}
	\geometry{left=2.5cm, right=2.5cm, top=2.5cm, bottom=2cm}
\setlength{\parindent}{0pt}

% TODO: Change Title Variable
\def\papertitle{Title}

\bibliographystyle{unsrt}

\pagestyle{fancy}

\lhead{\papertitle}
\rhead{Jirayu Ruh}

\lfoot{}
\cfoot{\thepage}
\rfoot{}

\setcounter{secnumdepth}{5}
\setcounter{tocdepth}{5}

\begin{document}

\section{\papertitel}

% TODO: Begin Paper here.

\end{document}