3 4 2 3
1 1 2 0
\[
\begin{array}{|c|c|c|}
\hline
\INPUTBOX{1}{ltr}{3} & \INPUTBOX{2}{ltr}{4} & \INPUTBOX{3}{ltr}{2} & \INPUTBOX{4}{ltr}{3} \\
\hline
\INPUTBOX{5}{ltr}{1} & \INPUTBOX{6}{ltr}{1} & \INPUTBOX{7}{ltr}{2} & \INPUTBOX{8}{ltr}{0} \\
\hline
\end{array}
\]