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

Example Input: [20, 46, 12, 22, 35, 6, 4, 39, 14, 26, 10, 34, 41, 31, 43, 25, 7, 9, 28, 42], target=10
Example Output: [6, 4]

Example Input: [14, 33, 21, 48, 9, 39, 23, 27, 18, 42, 41, 24, 10, 32, 19, 49, 46, 30, 11, 45], target=80
Example Output: [39, 41]

Example Input: [2, 17, 35, 34, 5, 41, 28, 40, 21, 13, 33, 43, 11, 27, 4, 23, 15, 24, 44, 8], target=100
Example Output:
[]

