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:
[36, 18, 12, 48, 39, 30, 19, 1, 34, 21, 17, 49, 44, 37, 47, 6, 26, 2, 28, 23], target=29
answer:
[12, 17]


question:
[32, 13, 19, 29, 34, 21, 46, 45, 20, 35, 28, 27, 39, 14, 3, 26, 41, 42, 18, 25], target=68
answer:
[29, 39]


question:
[39, 41, 1, 42, 18, 21, 32, 40, 35, 45, 4, 43, 28, 8, 16, 17, 29, 26, 23, 22], target=51
answer:

[43, 8]