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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_reduced_symbols(symbols):
 """Reduces expanded list of symbols. Args: symbols: list containing any chemical symbols as often as the atom appears in the structure Returns: reduced_symbols: any symbols appears only once """


    reduced_symbols = []

    for ss in symbols:
        if not (ss in reduced_symbols):
            reduced_symbols.append(ss)

    return reduced_symbols