Unique In Order Requisites Write a function that takes argument and returns list The list must have the same order as the original sequence argument Same values next to each other must be condensed into one value List can have same values but they cannot be next to each other i.e. ['A', 'B', 'C', 'D', 'A', ‘B’] Has to be case sensitive meaning c and C are not the same Argument can be both a list or a string How should we do it? Empty list Iterate through the argument and add letters to new list Set up conditional that peeks at the next index If next index is equal to current index, then it won’t add letter to new list, if not, add to list As it’s case sensitive we need to use === or !== operators