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

SOLUTION: am

PROBLEM: BfCCzPNLBbwCoxMVAG, vhwNLBbwCbH

SOLUTION: NLBbwC

PROBLEM: eGWTMyvuKLriJJKeN, WCjcyvuKLrijWp

SOLUTION:
yvuKLri