Hi. For instance when you use round(5.1) or round(5.6) it will give you 5 and 6 respectivey in python. The question asks for 5.1 to be returned as 6. To do so, you can import math.ceil funtion.

So was I. There are some inputs bigger than integer. Check this first.

but I think 18 (eighteen) have to stand before 800(eight hundred)

Why do you think that?

meaning when it's 7.2, you need to round it up to 8. Maybe you should check Math.ceil method.

Google: "rounded up to the next integer".