Respectfully, you don't. Memory cards are volatile to a degree and aren't intended for long term storage. Odds are great your photos are all still there but it's not a certainty, especially across that many cards and photos.
But with that aside, how do you find a particular photo across that many cards?
How's their suet? Probably not very good, since they never mastered making cheese either. And for smuggling purposes, that's a LONG way for the llamas to swim.
What's the difference between a one-L lama, a two-L llama, and a three-L lllama?
A one-L lama is a Tibetan religious leader.
A two-L llama is a South American pack animal.
A three-L lllama is a really big fire.