Help me in solving PYSTRMCQ2 problem

My issue

Hi everyone, I didn’t get this problem ? can anyone help in this with an example

My code

7624

Learning course: Strings using Python
Problem Link: Multiple Choice Question Practice Problem in - CodeChef

@anuragrawat007

Correct Answer:

For all i, either X[i] == Y[i], or at least one of X[i] and Y[i] should be '?'.