Not sure how easy or hard this will be, but... Welcome to the tenth codegolf challenge! In this challenge, run a setwise XOR through two lists, and output the results in an output list. A setwise XOR means that you will only include items that are in exactly ONE list, but NOT both lists. So [1, 4, 5, 6] and [5, 2, 1] as input1 and input2, respectively, would result in an output of [4, 2, 6] or any of its permutations. String support is not needed, and do anything you like for duplicate elements.
easy lol