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

SOLUTION: ERnjubLF

PROBLEM: BdqUloJanutXoOyfLsuA, NRDloJanutXoOQY

SOLUTION: loJanutXoO

PROBLEM: CatIaP, entIFk

SOLUTION:
tI