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
Q: [37, 42, 23, 8, 35, 31, 24, 21, 22, 26, 18, 49, 4, 13, 32, 47, 2, 10, 12, 11], target=98
A: 
[]