Python calculator help

Question

Can someone help me with this code? The console shows error on line 25

https://code.sololearn.com/cd3yKdWm8R1S/?ref=app

Answer 1

Input example (separate lines):
3
6
7

Output:
6 * 7 = 42.

And don't forget to handle division by zero.

Answer 2

Input at alternate lines

Answer 3

Could you care to explain?

Answer 4

I check it and there is not any error