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

[35, 31, 33, 45, 20, 30, 17, 25, 18, 49, 10, 16, 8, 44, 48, 21, 37, 13, 5, 27], target=99
[]

[43, 39, 41, 29, 42, 30, 36, 46, 8, 20, 19, 33, 21, 2, 14, 5, 1, 38, 49, 24], target=77
[41, 36]

[43, 9, 18, 2, 7, 24, 46, 45, 12, 36, 6, 27, 40, 38, 47, 33, 44, 16, 31, 8], target=98

[]

