I have these two strings, I don't know how they're encrypted, but I suspect its a simple letter shift. Yea, it's a homework problem, but I know some of y'all like doing this kind of thing.
ZUUUIVGMYWLYNCNIM
EUAQMDZQPOHDBKQFSRWHG
ZUUUIVGMYWLYNCNIM
EUAQMDZQPOHDBKQFSRWHG