Does multiple UE4 versions get seperated in different folders?

Hi, when I’m in the launcher i downloaded 4.12 and I wonder about the option for multiple engine versions. I see there is different versions available to download. But I do not understand how it works. I mean, IF I download version 4.10 for example while already having 4.12 do they merge together on the same harddrive location such as folders? Or does it seperate the installs?

They are in separate folder locations for example, those 2 would end up in locations like.

C:\Program Files (x86)\Epic Games\4.10

C:\Program Files (x86)\Epic Games\4.12