The First Negative Reading

The weather robot logs the temperature every hour, and you need to know when it first dipped below zero. 🥶

You get a list of nums. Print the first negative number, or none if the day stayed warm.

Example:

Input: nums = [3, 1, -2, 5, -8] Output: -2

3 and 1 aren't negative, but -2 is — that's the first number below zero, so we print it and stop.