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\begin{example}
%?C{\textless}%Vda%Vdb%Vdc{\textbar}%Vde%Vdf%Vdg{\textgreater}\\
\end{example}

\begin{example}
  \%V{\textbar}0{\textbar}0{\textbar}-{\textbar}-{\textbar}1{\textbar}-{\textbar}-{\textbar}\\
\end{example}

\begin{example}
\%?C{\textless}%C%Vda{\textbar}%Vdb{\textgreater}
\end{example}