result_list = []
    comparisons = 0
    # ---start student section---
    list2_counter = 0
    while list2_counter < len(plate_list2):
        comparisons += 1
        if plate_list2[list2_counter] in plate_list1: #the item in list 2 IS in list 1 BAD CASE
            list2_counter +=1 #check next list1 values
        else: #the list2 value is NOT in list1, unique = GOOD CASE
            result_list.append(plate_list2[list2_counter]) #add this to the comparisons list
            list2_counter += 1