%% 
%%  \protect \LaTeX  -Referenz, 1. Auf"|lage 2007
%% 
%%  Example 7-4-9 on page 100.
%% 
%%  Copyright (C) 2007 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.
%% 

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{201.7051pt}
\setlength\parindent{0pt}
\StartShownPreambleCommands
\usepackage[table]{xcolor}
\usepackage{array}
\StopShownPreambleCommands
\begin{document}
\begin{tabular}
 {|*{3}{>{\columncolor{blue!40}}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}