\begin{exampleblock}{To Practice}
\begin{itemize}
\item Definitively not efficient enough: a \emph{generate and test} approach
\item $f^*(x_1,x_2,x_3) = (x_2 \oplus x_3, x_1 \oplus \overline{x_3},\overline{x_3})$: function with the smallest MT, $n=3$
\item $f^*$: the $3$-cube in which the \emph{Hamiltonian cycle}
$000,100,101,001,011,111,110,010,000$ 
has been removed
\end{itemize}
\vspace{-3em}
\begin{figure}
\begin{center}
\includegraphics[scale=0.5]{iter_f0b.eps}
\end{center}
\caption{Iteration Graph $\Gamma(f^*)$ of the function $f^*$}\label{fig:iteration:f*}
\end{figure}

\end{exampleblock}