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: [22, 9, 29, 20, 3, 21, 30, 35, 14, 42, 7, 6, 31, 10, 2, 27, 47, 38, 11, 41], target=87
Output:
[]