Definition: 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
Input: [36, 19, 21, 42, 8, 31, 25, 43, 4, 2, 13, 3, 1, 11, 17, 10, 45, 12, 30, 23], target=29

[4, 25]