8282???

There's this one Korean song I've been listening to for months now but the funny thing is that I still have no idea what the title really is or what it really meant. (LOL!) As a K-pop/J-pop/C-pop music lover, it's typical for me to pick up a song from either the asian dramas I've been seeing, listening to their OSTs (Original Soundtracks) or recommendation by fellow Asian music lovers. Mostlikely, after liking a specific song, I would look for lyric translations of that song in english and maybe later after playing it countless times I even get to sing it too.

But with this one korean song, I still couldn't figure out its title. Of course I've downloaded the album from which it came and I know the artists who sang it, But on the track the title is just "8282". What the heck is 8282? A phone number?

Here's a video as it was performed on Korea's MUSIC BANK of the song I found on Youtube :
It's by the girl duo, DAVICHI