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

SOLUTION: QcyodWh

PROBLEM: elloYaejTczBiiNOU, XoCPzloYaejTcXYtKODL

SOLUTION: loYaejTc

PROBLEM: wMnuGRrwYqAaLZdTuJSbvgdDcM, lmPlCSNONqAaLZdTuJpFLVwBJ

SOLUTION:
qAaLZdTuJ