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

SOLUTION: FOfjNYmXVj

PROBLEM: ezVsFayUPcrte, lfsFayUMPTqx

SOLUTION: sFayU

PROBLEM: GcEQjFuvsUuyfI, dEEQjFuvsUuRVRAWbO

SOLUTION:
EQjFuvsUu