In this task, you are given two strings A, B. Find the longest common substring in the strings A and B.

Q: qczzCr, zDzzUI

A: zz
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Q: AedXEOrEgvnzF, TVTEOrEgvxKuJgv

A: EOrEgv
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Q: ywTMplIkifRJVRmfGrnZd, pjTCGYodEifRJVRmfGrmdHAbj

A:
ifRJVRmfGr
****