\begin{table}[]
\begin{tabular}{|l|l|l|l|l|l|l|}
\hline
\multicolumn{2}{|c|}{ILP} & \multicolumn{3}{c|}{Greedy} & \multicolumn{2}{c|}{LS} \\ \hline
Cost        & Runtime     & Cost     & Error  & Runtime & Cost        & Error     \\ \hline
35728494    & 3146.34     & 75049777 & 110.06 & 223.99  & 75127398    & 110.27    \\ \hline
41241938    & 2637.619    & 89637543 & 117.35 & 297     & 89137555    & 116.13    \\ \hline
41433205    & 4861.419    & 87897728 & 114.49 & 306.38  & 88171730    & 112.8     \\ \hline
38985081    & 4645.383    & 83886856 & 115.18 & 335.37  & 83482490    & 114.14    \\ \hline
\end{tabular}
\end{table}