4eat cooling lines

hey all, i had a leak coming from my tranny cooling lines, and i made the mistake of not taking a photo of how the lines were before they were removed. my question is, can anyone tell me which line is the inlet, and which is the outlet on a 4eat in a 2001 legacy outback. i dont wanna hook anything up backwards before running the car again.

this is the part that i am talking about circled in red