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

[EX Q]: [33, 13, 6, 40, 23, 3, 49, 10, 30, 8, 31, 38, 15, 5, 20, 9, 16, 19, 45, 12], target=25
[EX A]: [10, 15]

[EX Q]: [10, 6, 3, 21, 4, 13, 2, 16, 41, 17, 26, 39, 37, 31, 29, 18, 15, 9, 45, 47], target=87
[EX A]: []

[EX Q]: [11, 8, 15, 48, 5, 42, 10, 29, 40, 45, 2, 21, 23, 33, 20, 44, 37, 1, 24, 35], target=61
[EX A]:
[40, 21]