How to input elements in 2D list of python?

Question

Size of rows is inputted by user and there could be any number of columns.

Answer 1

https://code.sololearn.com/c55nE51tEe35/?ref=app
Is this fine?

Answer 2

TurtleShell sir how to correct this error?
https://code.sololearn.com/cNZsznsFhu63/?ref=app

Answer 3

I just updated my code fixing the issue also it asks for every element number

Answer 4

TurtleShell yup the issue is resolved. Thank you..