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:
[45, 13, 22, 47, 8, 10, 41, 24, 33, 12, 23, 25, 17, 34, 19, 38, 36, 26, 5, 16], target=87
answer:
[]


question:
[4, 49, 44, 23, 41, 21, 38, 13, 28, 25, 12, 18, 39, 43, 24, 16, 3, 26, 14, 1], target=79
answer:
[41, 38]


question:
[44, 15, 35, 40, 16, 48, 21, 8, 27, 30, 41, 14, 11, 33, 13, 24, 7, 22, 9, 47], target=12
answer: