import re


def camel_case_transformer(s):
    """
    Converts a camel case string into space separated words starting with a capital letters
    E.g. input: 'camelCase' output: 'Camel Case'
    REMARK: the exceptions list below is returned uppercase, e.g. "cve" => "CVE"
    """

    str = re.sub('([a-z])([A-Z])', r'\g<1> \g<2>', s)
    if str in ['id', 'cve', 'arn']:
        return str.upper()
    return str.title()