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:
[26, 42, 1, 46, 15, 11, 23, 18, 4, 25, 39, 49, 30, 47, 13, 9, 29, 19, 2, 35], target=59
answer:
[46, 13]


question:
[39, 30, 17, 47, 19, 23, 44, 5, 20, 1, 8, 42, 48, 11, 34, 6, 26, 13, 18, 4], target=43
answer:
[23, 20]


question:
[25, 32, 28, 15, 31, 43, 4, 11, 42, 13, 33, 27, 45, 23, 6, 41, 16, 48, 38, 5], target=38
answer:

[25, 13]