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

[42, 3, 48, 31, 46, 24, 18, 25, 36, 43, 11, 22, 12, 37, 49, 44, 38, 2, 13, 23], target=76
Output:
[]