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

SOLUTION: ZFPjLVof

PROBLEM: UZbmGVDzIaf, qfHwqGVDzIsd

SOLUTION: GVDzI

PROBLEM: PtCHgVApB, fVnHgVFk

SOLUTION:
HgV