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    Description

    Create a function wich takes in a list of tuples which contain a name of a worker and their annualy salary and return a tuple with the five workers with the highest salary in descending order. Unluckily for you, the salary of some workers is unknown and hence represented as "-". Those workers shouldn't be in your final tuple.

    Examples:

    Input: [("max", "20000"), ("jason", "40000"), ("christian", "70000"), ("carl", "50000")] => Output: ("christian", "carl", "jason", "max")

    Input: [("worker0", "-"), ("stephy", "100000"), ("king", "10000")] => Output: ("stephy", "king")

    Input: [("ironman", "20000"), ("batman", "15000"), ("kenobi", "150000"), ("mr. x", "40000"), ("spiderman", "75000"), ("ramsay", "115000")] => Output: ("kenobi", "ramsay", "spiderman", "mr. x", "ironman")

    Happy coding :-)

     Code 
    def sort_by_salary(workers):
    filtered = list(filter(lambda x: x[1] != "-", workers))
    if not filtered:
        return tuple()
    new =  list(sorted(filtered, key=lambda x: int(x[1])))[::-1]
    return tuple(i[0] for i in new)[:5]
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