The conversation between human and AI assistant.
[|Human|] Given a list of elements, find the two elements which sum up to the given number
[|AI|] Based on the given list [2, 3, 4, 8] and the desired sum of 6, the two elements in the list that add up to 6 are 2 and 4.
[|Human|] 
Given a list of elements, find the two elements which sum up to the given number