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

SOLUTION: NwGVEwSSro

PROBLEM: faHRBWyXsYzYmHQyy, aHTyXsYzYeXBFV

SOLUTION: yXsYzY

PROBLEM: fjRZtTPbrGFTEBOZPKZlS, eaagjGmkRZtTPbrGFTrQhnueuYmx

SOLUTION:
RZtTPbrGFT