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

SOLUTION: DxIgRigl

PROBLEM: rcKVmDzwJKeK, uYqmDzwJKxkGi

SOLUTION: mDzwJK

PROBLEM: RdMHpByHsX, OMtmHpByied

SOLUTION:
HpBy