\begin{array}{|c|c|} \hline x & y \ \hline 3 & 21 \ 5 & 47 \ 8 & 86 \ \hline \end{array}

\begin{array}{|c|c|} \hline x & y \ \hline 3 & 26 \ 5 & 42 \ 8 & 86 \ \hline \end{array}

\begin{array}{|c|c|} \hline x & y \ \hline 3 & 16 \ 5 & 42 \ 8 & 81 \ \hline \end{array}

\begin{array}{|c|c|} \hline x & y \ \hline 3 & 26 \ 5 & 52 \ 8 & 91 \ \hline \end{array}