



import re
def 		UpperCamelCase     (       snake_case__	:   str     )     ->					str:

   if len(re.findall('[ATCG]'	,					snake_case__     )     ) != len(snake_case__     ):
      raise ValueError('Invalid Strand'     )

   return dna.translate(dna.maketrans('ATCG'	,					'TAGC'     )     )


if __name__ == "__main__":
    import doctest

    doctest.testmod()








from abc import ABC, abstractmethod
from argparse import ArgumentParser



class     lowerCAmelCase_		(  a__							):
       @staticmethod
       @abstractmethod
       def  snake_case_	(      SCREAMING_SNAKE_CASE_	)					->		int:
          raise NotImplementedError()






       @abstractmethod
       def  snake_case_	(      self	)					->		str:
          raise NotImplementedError()



