\begin{table}[h]
\input double
\begin{center}
\begin{tabular}{|c|c|}
\hline
Problem     & grade\\
\hline
1 & \\
\hline
2 & \\
\hline
3 & \\
\hline
4 & \\
\hline
 Total & \\
\hline
\end{tabular}
\end{center}
\end{table}

