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test title

chapter

section

subsection

aa
bb

https://www.baidu.com/

• a
• b
• c

#include <cstdio>
#include <iostream>
using namespace std;
int main()
{
   return 0;
}

1. 1
2. 2
3. 3

• a
• b
• c

\(\frac{a}{b}\)

\[\frac{a}{b}\]

\begin{equation}
\frac{a}{b}
\end{equation}

\begin{enumerate}
\item a
\item b
\end{enumerate}