OSPF can only summarize between areas (on ABR - Area Border Router) or between an external Autonomous System and OSPF (on ASBR - Autonomous System Boundary Router).All interfaces of both of your routers are in Area 0. So, no summarization would work ...
You can achieve this by modifying the TOS value of incoming IP packets. Use route-maps on the incoming interface and modify the TOS value. WFQ flows are also based on TOS.