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

Input: Consider Input: EOacPYivmmUlYenynBqAwx, MoZWMOeXmUlYenynBEendWg

Output: mUlYenynB


Input: Consider Input: OyXwTWbLByC, yODnTWbLWYzc

Output: TWbL


Input: Consider Input: glTZjlxNd, qLZbTZjlos


Output: TZjl