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

Input: Consider Input: goyZUz, QryZlD

Output: yZ


Input: Consider Input: XmiLktrUjJDOCJ, UIKrUjJDOQsR

Output: rUjJDO


Input: Consider Input: uFstIwuIBGlLozlEpHmcToA, vrdJIBGlLozlEuMlI


Output: IBGlLozlE