Error?

[gruntfutuk]

We were told to use eval() since int() and float() do not iterate.

I'm not sure what you mean by int() and float() do not iterate

I miss spoke by saying iterate, what I meant to say that having a user input numbers, like in the program the person was trying to do here, doing it with by saying something like a,b = int(input('Enter A and B: ")) will produce this error.

Error:
Traceback (most recent call last):
  File "C:\Users\bagpi\Desktop\test.py", line 1, in <module>
    a,b = int(input("Enter A and B: "))
ValueError: invalid literal for int() with base 10: '1,2'

The OP was trying to unpack two integer values from one string: not going to work.

I provided one alternative approach that is pretty succinct, although lacks error checking (so programme will stop if the user does not enter two integers with a space between them) that I thought sufficient for a beginner. I personally would normally write a function to manage data input and validation (probably using a try/exception block).

For a beginner, it might have been better to just have two input statements, frankly rather than collect two inputs at the same time.