They've been re-registered in Ireland. The Lessor wanted them out of the country and off the Hungarian register ASAP in case the government tried to annul leases etc. They flew out as a group (IIRC there were about 17 in a row) and either went to Shannon (where the owners have a base) or Dublin for storage. The B736's have since gone for scrap (the B736 has horrendous economics) while the others are progressively being overhauled and will go in to service with other airlines...Ah, that's why they're over there then. Couldn't for love nor money tell you which ones they were, I did try ID'ing them on my way into Dublin to no avail.