Why did my code not run?

Question

I tried using words instead of numbers, just to play around with the concept of "if else" statements, I wanted to know the reason as to why my code did not run "yes" after I typed in

Answer 1

Could you please post the link here not in the tag

Answer 2

Antik I saw your code in your profile. From line 13 move your code like the ones above. It is not executed because of the if-else statements above.
Indentation is very important in Python.

Edit:
Or just make num = 0 on the first line