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

[Q]: [9, 33, 7, 8, 2, 1, 10, 26, 15, 23, 22, 43, 36, 29, 42, 19, 37, 47, 13, 49], target=77
[A]: []


[Q]: [42, 22, 36, 49, 31, 33, 27, 24, 37, 26, 34, 46, 16, 29, 40, 41, 2, 39, 11, 17], target=88
[A]: [42, 46]


[Q]: [44, 26, 23, 49, 1, 14, 45, 2, 27, 34, 20, 12, 16, 36, 3, 6, 21, 4, 35, 9], target=100
[A]:
[]


