An interesting challenge!

[Dot]

Hi, I'm not good with numbers, but I'm sure these two couples of strings share a common principle.

If this string:
(1) aed3925b-d05062eb-e391fced-482841f4-348fbb29

is in relationship with this one
(2) ca77-c5d7-ec66-2d8a


and...

If this string:
(3) 5103be77-2b0a47a9-2388c562-69825a45-656f8bf3

is in relationship with this one:
(4) 5a7e-c3d7-e861-6d5a


which would be the string to replace the string (3), to be coupled with the string (2) ?

thanks :-)