Definition: You are given a list of integers and an integer target, return a list of a pair of numbers in any order such that they add up to target. If there is no such pair of numbers, then return an empty list
Input: [33, 41, 18, 39, 1, 26, 19, 28, 4, 34, 22, 44, 25, 29, 21, 27, 24, 42, 48, 3], target=24

[3, 21]