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%%  Ein Beispiel der DANTE-Edition
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%%  2. Auflage
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%%  Beispiel 06-02-2 auf Seite 215.
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%%  Copyright (C) 2016 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
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% Show page(s) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{169.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{array}
%StopShownPreambleCommands
\begin{document}
\begin{tabular}
 {|*{3}{l}|*{4}{r|}}\cline{1-3}
l&l&l&r&r&r&r\\ L&L&L&R&R&R&R\\\cline{1-3}
\end{tabular}
\end{document}