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

Input: Consider Input: andNlOdIcQMyZvc, vCMENolkslOdIcQMyZJtCFo

Output: lOdIcQMyZ


Input: Consider Input: YcgVJVACcQE, JsJVACcSz

Output: JVACc


Input: Consider Input: vIDJrpsrIrrwytHUcUgq, teoNrrwytHUcUDibQQL


Output: rrwytHUcU