Pls tell me what is my mistake in this program?? I am confused.

Question

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

Answer 1

Indentation matters in Python. if, elif, else all should be indented in same manner. I've edited your code here, now it works. Give input like this:
add
4
5
quit
If you don't give "quit" at last, it'll cause eoferror since it's an infinite loop.

https://code.sololearn.com/ccNHSY9EkU6u/?ref=app

Answer 2

invalid syntax is bcoz indentation error(probably) see Shamima 's answer

Answer 3

1. A LOT of indentation errors.

Suggestion :- use elif, instead of else and if s

Answer 4

Thanks @Meharban Singh

Answer 5

But it shows "invalid syntax" if i use elif