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

[20, 46, 12, 22, 35, 6, 4, 39, 14, 26, 10, 34, 41, 31, 43, 25, 7, 9, 28, 42], target=10
[6, 4]

[34, 25, 11, 36, 15, 4, 18, 39, 2, 31, 22, 28, 41, 42, 35, 30, 8, 20, 23, 29], target=48
[18, 30]

[14, 1, 34, 39, 17, 4, 37, 24, 15, 28, 8, 44, 3, 18, 20, 43, 30, 27, 7, 41], target=36

[28, 8]