. How do I enter a formula that will return a Y where the stock levels are Low and the Group is either A or H. Also it has to leave the column blank if its B or C

\begin{tabular}{|cc|} \hline Low & Group \\ \hline Low & A \\ \hline Low & A \\ \hline & A \\ \hline Low & A \\ \hline Low & A \\ \hline Low & A \\ \hline & A \\ \hline & B \\ \hline & B \\ \hline \end{tabular}