Query Rule Properties for Collection

Greetings,

     I am trying to use a query statement membership rule to populate a collection by server name. Our servers names have the following format.

Server1, Server2, Server3, Server4, Server5, Server6, etc all the way to Server30.

I want to create two separate collections.

Servers - Odd

Servers - Even

Using a query membership rule is there any way I can have the server names that end in an even number populate in to the "Server - Even" collection and the servers that end in an odd number populate in to the "Servers - Odd" collection? I rather not use a direct rule as I would like the collection to be updated when additional servers are added in the future and I am relativity new to SCCM.

Thanks for any help or direction you can provide.

Regards,

Keith