\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
10164063     & 282.527    & 21313937 & 109.7  & 14      & 21194704    & 108.53    \\ \hline
10228313     & 283.661    & 21219530 & 107.46 & 14      & 21083534    & 106.13    \\ \hline
10624498     & 327.238    & 22787973 & 114.49 & 18.58   & 22748559    & 114.11    \\ \hline
10164063     & 291.256    & 21460491 & 111.14 & 12      & 21388216    &           \\ \hline
\end{tabular}
\end{table}