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

SOLUTION: TCxTiUAIC

PROBLEM: YKpdeJQhzyYiPoODACUu, mjmnIlCehzyYiPoOzZ

SOLUTION: hzyYiPoO

PROBLEM: EYXWHfcSNIm, ANUWHfcNil

SOLUTION:
WHfc