\begin{Schunk}
\begin{Sinput}
 round(a)
\end{Sinput}
\begin{Soutput}
[1] 57
\end{Soutput}
\begin{Sinput}
 round(b)
\end{Sinput}
\begin{Soutput}
[1] 58
\end{Soutput}
\end{Schunk}
