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

SOLUTION: CpiJAplp

PROBLEM: EOacPYivmmUlYenynBqAwx, MoZWMOeXmUlYenynBEendWg

SOLUTION: mUlYenynB

PROBLEM: ETflyPgTXq, hLXyPgTvVv

SOLUTION:
yPgT