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: [44, 48, 27, 36, 40, 13, 26, 12, 19, 45, 11, 31, 37, 9, 8, 10, 46, 24, 16, 43], target=71

[40, 31]