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: [31, 18, 7, 36, 20, 3, 37, 22, 24, 12, 44, 32, 14, 25, 43, 1, 2, 9, 17, 15], target=54

Solution: [18, 36]