BGP Prefix List for Odd and Even Routes in Juniper

Hi Team. I am looking for a way in JunOS to be able to filter odd and even routes in the 3rd octet of a subnet. For example:

1. All even routes x.x.EVEN.x routes via RTR1.
2. All odd routes x.x.ODD.x routes via RTR2.

I have done this before with Cisco Routers prefix-list, however in JunOS I am not sure what is the right way to do this. Thank you in advance.