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


question:
[30, 23, 17, 7, 48, 3, 47, 46, 6, 33, 14, 36, 44, 41, 35, 40, 5, 15, 49, 22], target=31
answer:
[17, 14]


question:
[44, 17, 10, 41, 21, 36, 29, 1, 18, 45, 19, 23, 40, 6, 28, 49, 25, 30, 22, 24], target=10
answer: