\documentclass[11pt,a4paper]{article}
	\usepackage{amssymb}
	\usepackage{amsmath}
	\usepackage{geometry}
	 \geometry{
	 a4paper,
	 total={170mm,257mm},
	 left=20mm,
	 top=20mm,
	 }



	\usepackage{pgf} 

	\pgfmathsetseed{\number\pdfrandomseed} % to ensure that it is randomized
	% use \randomseed for xelatex

	\newcommand{\randomnum}[1]{% 
		\pgfmathsetmacro{\thenum}{int(random(ceil(#1-#1/4),floor(#1+#1/4)))}%
		\thenum%
	}%


	\newcommand{\answerbox}[1]{%%
    	\fbox{\rule{#1in}{0pt}\rule[-0.5ex]{0pt}{4ex}}}

    \title{\textbf{Application Form A23}}
    \author{c3Reg}
    \date{Control no. \randomnum{1000}}
    
    \addtolength{\topmargin}{-2cm}

    
    

    
\begin{document}

\maketitle
\thispagestyle{empty}
\section*{}
I hereby applicate for the registration of being a hacker. 
\\
The passport document has been \ \ \ \answerbox{0.1} already issued in a blank state \ \ \ \answerbox{0.1} not yet issued


\section*{Personal data}
\ 

Forename/Nick (max. 17 characters)
\\
\answerbox{6.5}
\\

Surname (max. 17 characters) [optional]
\\
\answerbox{6.5}
\\

Home(-hackerspace) (max. 17 characters)
\\
\answerbox{6.5}
\\

\section*{Current situation}
\subsection*{Chaos events}
This is my \ \ \ \ \answerbox{0.1} first \ \ \ \ \answerbox{0.1} second \ \ \ \ \answerbox{0.1} $\{\exists x \in \mathbb{N} \ |\ x > 2  \}$ \ \ \ Chaos event I've ever visited.

\subsection*{The Chaos}
I know \ \ \ \answerbox{0.1} nothing$^{1)}$ \ \ \ \answerbox{0.1} somewhat \ \ \ \answerbox{0.1} the secret \ \ \ \ about the Chaos.
\\
$^{1)}$Please fill out form R22
\section*{Additional hints}
\begin{itemize}
\item To register your \textbf{GPG fingerprint} on your passport, please fill out \textbf{Form PKSR20}.
\end{itemize}

\end{document}