\begin{tabular*}{0.4\textwidth}{ | l | c | c | r | }
\hline
0. \\
\hline
1. & 1, 11 \( \rightarrow \) & 56 \\
\hline
2. & 12, 22 \( \rightarrow \) & 37, 87 \( \rightarrow \) & 2 \\
\hline
3. & 3, 18  \\
\hline
4.  & 9  \\
\hline
\end{tabular*}