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

Input: Consider Input: uGDJixAmSiVaFRmfKRM, NsTGxsJixAmSiVageSw

Output: JixAmSiVa


Input: Consider Input: zqwhMdAdXQfQCAmVNaYZm, toYMIwQeadAdXQfQCAmLyheFOv

Output: dAdXQfQCAm


Input: Consider Input: nwBquajXVjwqipFebohyT, tHEHlDjXVjwqipzoq


Output: jXVjwqip