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: [41, 14, 21, 26, 12, 23, 39, 40, 16, 34, 17, 9, 25, 42, 15, 43, 1, 8, 4, 49], target=65

[40, 25]