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

Answer: dAdXQfQCAm


Question: BmxgSFWBlVX, kGgKrgSFWBlGunFcZ

Answer: gSFWBl


Question: cKYLORUjUyMOf, KsRUjUyMgx

Answer:
RUjUyM