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

SOLUTION: we

PROBLEM: RwduMBkDazrwZP, UPzcwtWMBkDazrAw

SOLUTION: MBkDazr

PROBLEM: LVZjOgT, KKcZjOMMk

SOLUTION:
ZjO