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: [2,4,5,6,4,8,9,10], target=10
Example solution: [2,8]
Example explanation: 2 and 8 are present in the list and sum to 10 which was the target sum

Problem: [41, 5, 47, 7, 6, 45, 37, 31, 13, 40, 22, 17, 15, 21, 19, 24, 9, 23, 36, 29], target=84

Solution: [47, 37]