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

SOLUTION: RuE

PROBLEM: libDFDxIgRiglWfxMVRr, yMltDxIgRiglpms

SOLUTION: DxIgRigl

PROBLEM: voXyjLwlfpkYEKqtPayR, KtyfSaXkfpkYEKqtPaGovYtxuZC

SOLUTION:
fpkYEKqtPa

