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

SOLUTION: bi

PROBLEM: SUueHhzGsanfsalEEc, KygEhzGsanfsapbKKX

SOLUTION: hzGsanfsa

PROBLEM: LTvInZWW, vIvInwRh

SOLUTION:
vIn