How to take input along a column in python

Question

2D vector addition in form of matrix I want two inputs on first line and two on second then print it's sum , a class must be used

Answer 1

For small arrays you can do it like this:
https://code.sololearn.com/ceNYYC1thqE6/?ref=app

For larger, you could do it iteratively, in a loop. Of course, then a sort of a row-by-row input validation would be a good idea ;)