O2 sensor wire diagram

I got a 2006 Prius but not sure of the model/trim package just says Hybrid synergy drive.
The cat was stolen along with both the upstream and downstream o2 sensors.
Need help with identifying the the color coded wires and the position of them into a new pigtail plug
on the harness side for both the up and down stream.
I know they're both 4 wire sensors but they have 2 black 1 white and 1 blue wire.