diff --git a/bar169.pdf b/bar169.pdf
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diff --git a/bar169.tex b/bar169.tex
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-\documentclass[aspectratio=169]{beamer}
-\usepackage[english]{babel}
-\usepackage{fancyhdr}        % header footer
-\usepackage{graphicx}        % figure
-\usepackage{booktabs}
-\usepackage{xcolor}
-\usepackage{bookmark}
-\usepackage{hyperref}
-\usepackage{graphicx} % Allows including images
-\usepackage{booktabs} % Allows the use of \toprule, \midrule and \bottomrule in tables
-\usepackage{tikz}
-\usepackage[ruled,linesnumbered]{algorithm2e}
-\usepackage{adjustbox}
-
-\author{Yu Cong}
-\title{Reachability and Büchi games}
-\date{\today}
-
-% \AtBeginSection[]{
-%     \frame{\frametitle{Outline}\tableofcontents[currentsection, 
-%     subsectionstyle=show/show/shaded]}
-% }
-
-\usetheme{Bar169}
-
-\begin{document}
-    \begingroup
-        \makeatletter
-        \setlength{\hoffset}{.5\beamer@sidebarwidth}
-        \makeatother
-        
-        \begin{frame}[plain]
-            % Print the title page as the first slide
-            \titlepage
-        \end{frame}
-
-        \begin{frame}[plain]{Overview}
-            % Throughout your presentation, if you choose to use \section{} and \subsection{} commands, these will automatically be printed on this slide as an overview of your presentation
-            \tableofcontents
-        \end{frame}
-    \endgroup
-    \input{content.tex}
-\end{document}
\ No newline at end of file
diff --git a/beamerthemeBar169.sty b/beamerthemeBar169.sty
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--- a/beamerthemeBar169.sty
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-% Copyright 2018 by Zhibo Wang
-%
-% This file may be distributed and/or modified
-% under the LaTeX Project Public License
-
-
-\definecolor{beamer@simple@color}{RGB}{163 0 0} % bluegreen
-\DeclareOptionBeamer{gray}{\definecolor{beamer@simple@color}{gray}{#1}}
-\DeclareOptionBeamer{rgb}{\definecolor{beamer@simple@color}{rgb}{#1}}
-\DeclareOptionBeamer{RGB}[{12 72 0}]{\definecolor{beamer@simple@color}{RGB}{#1}}
-\DeclareOptionBeamer{HTML}{\definecolor{beamer@simple@color}{HTML}{#1}}
-\DeclareOptionBeamer{cmyk}{\definecolor{beamer@simple@color}{cmyk}{#1}}
-\DeclareOptionBeamer{cmy}{\definecolor{beamer@simple@color}{cmy}{#1}}
-\DeclareOptionBeamer{named}{\definecolor{beamer@simple@color}{named}{#1}}
-\DeclareOptionBeamer{hsb}{\definecolor{beamer@simple@color}{hsb}{#1}}
-\ProcessOptionsBeamer
-
-% sidebar
-% on the right
-\useoutertheme[width=5\baselineskip,right,hideothersubsections]{sidebar}
-% delete title and author
-% \makeatletter
-\setbeamertemplate{sidebar right}{\insertverticalnavigation{\beamer@sidebarwidth}}
-% \makeatother
-% fontsize
-\setbeamerfont{section in sidebar}{size=\scriptsize}
-\setbeamerfont{subsection in sidebar}{size=\scriptsize}
-% margin
-\setbeamersize{sidebar width right=3cm}
-\setbeamersize{sidebar width left=0.5cm}
-
-
-
-% footline
-% delete navigation below
-\setbeamertemplate{navigation symbols}{}
-% define footline
-% \makeatother
-\setbeamertemplate{footline}
-{
-  \leavevmode%
-  \hbox{%
-    \begin{beamercolorbox}[wd=.2\paperwidth,ht=2.25ex,dp=1ex,center]{author in head/foot}%
-        \usebeamerfont{author in head/foot}\insertshortauthor
-    \end{beamercolorbox}
-
-    \begin{beamercolorbox}[wd=.7\paperwidth,ht=2.25ex,dp=1ex,center]{title in head/foot}%
-        \usebeamerfont{title in head/foot}\insertshorttitle
-    \end{beamercolorbox}
-
-    \begin{beamercolorbox}[wd=.1\paperwidth,ht=2.25ex,dp=1ex,center]{title in head/foot}%
-        \usebeamerfont{title in head/foot}\insertframenumber{} / \inserttotalframenumber\hspace*{0ex}
-    \end{beamercolorbox}
-  }
-
-  \vskip0pt%
-}
-% \makeatletter
-% footline color
-\setbeamercolor{author in head/foot}{fg=black, bg=mygrey!10!white}
-\setbeamercolor{title in head/foot}{fg=black, bg=mygrey!10!white}
-
-% item settings
-\setbeamertemplate{itemize item}{$\color{beamer@simple@color}\bullet$}
-\setbeamertemplate{itemize subitem}{$\color{beamer@simple@color}\bullet$}
-\setbeamertemplate{enumerate items}[square]
-\setbeamertemplate{section in toc}[sections numbered]
-\setbeamertemplate{subsection in toc}[square]
-
-
-% color definition
-\definecolor{mygrey}{rgb}{0.52, 0.52, 0.51}
-
-\setbeamercolor{structure}{fg=beamer@simple@color, bg=mygrey!10!white}
-\setbeamercolor{frametitle}{fg=beamer@simple@color, bg=white}
-\setbeamercolor{block title}{bg=mygrey!14!white}
-\setbeamercolor{block body}{fg=black,bg=mygrey!10!white}
-\setbeamercolor{block body alerted}{bg=white}
-\setbeamercolor{block title alerted}{fg=beamer@simple@color,bg=white}
-\setbeamerfont{block title alerted}{series=\mdseries}
-\setbeamercolor{alerted text}{fg=beamer@simple@color}
-\setbeamerfont{alerted text}{series=\bfseries}
-\hypersetup{colorlinks,linkcolor=,urlcolor=beamer@simple@color!80!white}
-\usefonttheme[onlymath]{serif}
\ No newline at end of file
diff --git a/ctex169.pdf b/ctex169.pdf
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diff --git a/ctex169.tex b/ctex169.tex
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--- a/ctex169.tex
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-
-\documentclass[aspectratio=169]{beamer}
-\usepackage[english]{babel}
-\usepackage{fancyhdr}        % header footer
-\usepackage{graphicx}        % figure
-\usepackage{booktabs}
-\usepackage{xcolor}
-\usepackage{bookmark}
-\usepackage{hyperref}
-\usepackage{graphicx} % Allows including images
-\usepackage{booktabs} % Allows the use of \toprule, \midrule and \bottomrule in tables
-\usepackage{tikz}
-\usepackage[ruled,linesnumbered]{algorithm2e}
-\usepackage{adjustbox}
-\usepackage{ctex}
-% \usefonttheme[onlymath]{serif}
-
-\author{丛宇}
-\title{中文标题}
-\date{\today}
-
-% \AtBeginSection[]{
-%     \frame{\frametitle{Outline}\tableofcontents[currentsection,
-%     subsectionstyle=show/show/shaded]}
-% }
-
-\usetheme{Bar169}
-
-\begin{document}
-
-   \begingroup
-
-      \makeatletter
-      \setlength{\hoffset}{.5\beamer@sidebarwidth}
-      \makeatother
-
-
-      \begin{frame}[plain]
-         % Print the title page as the first slide
-         \titlepage
-      \end{frame}
-
-      \begin{frame}[plain]{Overview}
-         % Throughout your presentation, if you choose to use \section{} and \subsection{} commands, these will automatically be printed on this slide as an overview of your presentation
-         \tableofcontents
-      \end{frame}
-   \endgroup
-\section{Reachability Game}
-\begin{frame}{可达性博弈}
-   中文测试
-\end{frame}
-\section{Reachability Game2}
-\section{Reachability Game3}
-
-\begin{frame}{math test}
-   \begin{itemize}
-      \item How to find $T_1$\\
-
-      $T_1=\{v\in T : v$ can't reach $T\cup Reach(T,0)\}$\\
-      $T_1=\{v\in T: v$ can only reach $V\setminus \{T\cup Reach(T,0)\}\}$\\
-      P1 wants to reach $V\setminus \{T\cup Reach(T,0)\}\}$, P0 tries to avoid $V\setminus \{T\cup Reach(T,0)\}\}$.\\
-      compute $Reach(V\setminus \{T\cup Reach(T,0)\}\},1)$
-
-      \item Time complexity\\
-          $O(m)$ to find $T_i$, at most $O(n)$ times. Worst-case $O(nm)$.
-  \end{itemize}
-
-\end{frame}
-\begin{frame}
-   \frametitle{references}
-
-
-
-\end{frame}
-\end{document}
\ No newline at end of file