Instructions: 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: [30, 31, 13, 10, 14, 2, 33, 39, 23, 46, 8, 17, 37, 12, 41, 7, 40, 49, 22, 42], target=47
Output:
[14, 33]