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

[44, 48, 27, 36, 40, 13, 26, 12, 19, 45, 11, 31, 37, 9, 8, 10, 46, 24, 16, 43], target=71
[44, 27]

[15, 34, 45, 27, 36, 24, 31, 48, 3, 9, 42, 2, 16, 8, 30, 49, 14, 6, 26, 39], target=38
[36, 2]

[16, 29, 33, 43, 35, 47, 21, 18, 37, 4, 28, 32, 11, 48, 20, 5, 9, 2, 13, 46], target=37

[16, 21]