You will be given a definition of a task first, then some input of the task.
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, 21, 24, 28, 48, 25, 7, 17, 22, 29, 43, 49, 47, 30, 36, 44, 41, 8, 40, 14], target=35
Output:
[28, 7]