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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_process_tag(program, ccd, version='p'):
 """ make a process tag have a suffix indicating which ccd its for. @param program: Name of the process that a tag is built for. @param ccd: the CCD number that this process ran on. @param version: The version of the exposure (s, p, o) that the process ran on. @return: The string that represents the processing tag. """

    return "%s_%s%s" % (program, str(version), str(ccd).zfill(2))