Brian advertises on billboard looking for Justin

[roarlj.livejournal.com]

Hi,
I'm looking for a fic where Brian & Justin meet at a party in another city I think at New Year, but lose each other at the party and have no way of finding each other again. Although Justin tells Brian a riddle for him to guess his name based on most popular names. Brian organises a billboard in that city looking for Justin not knowing that he doesn't actually live there. Does anyone know where I can find this fic??

Thanks 

Found: The 56th Most Common Name by Sakesushimaki - Link inside