TASK DEFINITION: In this task, you are given two strings A, B. Find the longest common substring in the strings A and B.
PROBLEM: VGRjWGHRcBdFmkVg, eSwqALQXWGHRcBdFsDXCM

SOLUTION: WGHRcBdF

PROBLEM: jAinxmaQUrmu, jqeEnxmaQUrWlrEqW

SOLUTION: nxmaQUr

PROBLEM: euoTJKXeGQHVwQkmaWTQ, OBdjQHVwQkmaWzfvzeXH

SOLUTION:
QHVwQkmaW