TASK DEFINITION: In this task, you are given two strings A, B. Find the longest common substring in the strings A and B.
PROBLEM: uGDJixAmSiVaFRmfKRM, NsTGxsJixAmSiVageSw

SOLUTION: JixAmSiVa

PROBLEM: EOacPYivmmUlYenynBqAwx, MoZWMOeXmUlYenynBEendWg

SOLUTION: mUlYenynB

PROBLEM: LbkeCxraEvrZVytWfMQEF, eQkaEvrZVytaCHnhX

SOLUTION:
aEvrZVyt