You can create an Aggregate Query, to identify a single record for each group, and link that back to your original table, and then you could suppress it on the succeeding records. But as I mentioned in my first response, we need to determine how exactly you will be ordering the records, so we know which field and Aggregate function to use.
So feel free to take a crack at it. If you want more help on it, you will need to answer the question I answered above as well as telling us the table and key field names (the name of the field the "A" appears in, as well as the name of the field we will be using in the Aggregate Query).