\chapter{Introduction}
\clearpage

\section{はじめに}

Start Writing!

Use lualatex + biber to compile.

Test Bib\cite{example}

いろはにほへと ちりぬるを

{\sans \LaTeX で自由な組版を。}

{\sans Write freely with \LaTeX{}.}

{\zeroxproto LaTeX shall be free forever!}

\begin{lstlisting}[language=C, caption=Basic Hello World]
#include <stdlib.h>

int square(int n) {
    return n*n;
}

int main(int argc, char** argv) {
    char* msg = "Hello World";
    int x = 3;
    int y = square(x);
    printf("%s\n", msg);
    printf("f(x) = x^2; x: %d, y: %d\n", x, y);
    return 0;
}
\end{lstlisting}
    
\begin{displaymath}
    \int_{a}^{b} f(x) \,dx = F(b)-F(a)
\end{displaymath}
    
\begin{itemize}
    \item C
    \item Python
    \item Javascript
    \item Rust
    \item Haskell
\end{itemize}

\begin{enumerate}
    \item lualatex <filename>.tex
    \item biber <filename>
    \item lualatex <filename>.tex
    \item lualatex <filename>.tex
\end{enumerate}

\newpage

\section{Section}

section

\subsection{Sub Section}

sub section

\paragraph{Paragraph}

paragraph