Renault Megane Cabriolet Hydraulic Pump Fitting

Hi

I'm replacing my broken Hydraulic Pump for the roof of my Megane Cabriolet. I have a T reg and the pump is out of an 02 Megane. The pump fits fine, but the pipes on the pump are differentiated by letters. However, the related holes that the pipes fit into in my car are numbered.

Can anyone let me know how to map these letters to numbers?

Thanks

Dan