%% LaTeX2e file `ltx1.tex'
%% generated by the `filecontents' environment
%% from source `ltxtable' on 2021/06/13.
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\begin{longtable}{|cXX|}
the & head& line\endhead
the & foot& line\endfoot
a&b&b\\
\multicolumn{2}{c}{xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}&c\\
a&b&b b b b b b b b b b b b b b b b b b b b b b b b b b \\
a a& b b& c c\\
a a& b b&
  c c c c c c c c c c c c c c c c c c c c c c c c c c c c c cc cc\\
a a  aaaa& b b& c ccccc\\
\end{longtable}
