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: [12, 3, 21, 9, 23, 16, 13, 28, 4, 44, 43, 35, 22, 7, 14, 29, 19, 48, 27, 6], target=48

[4, 44]