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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 decamel(string):
 """"Split CamelCased words. CamelCase -> Camel Case, dromedaryCase -> dromedary Case. """

    regex = re.compile(r'(\B[A-Z][a-z]*)')
    return regex.sub(r' \1', string)