Closest to Zero

The submarine wants the depth reading closest to the surface — zero is sea level, negatives are underwater. 🌊

You get a list of nums (at least one). Print the number closest to zero. On a tie (like -3 and 3), the first one seen wins.

Example:

Input: nums = [-7, 4, -2, 9] Output: -2

The distances from zero are 7, 4, 2, 9 — the smallest is 2, belonging to -2.