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

SOLUTION: BqdPcXfHot

PROBLEM: nxTtNYaazlOyEBApiUSJS, BLazlOyEBCV

SOLUTION: azlOyEB

PROBLEM: ChbMOMZMmvzv, qwOMZMRaGA

SOLUTION:
OMZM