





def    __snake_case  (    _lowerCAmelCase       :       Tuple		)       ->  bool:
   A_    : Dict								=	0
   for ch in input_str:
      A_    : str								=	ord(UpperCamelCase__		)
      A_    : List[Any]								=	pow(2 , UpperCamelCase__		)

      # If we already turned on bit for current character's unicode
      if bitmap >> ch_unicode & 1 == 1:
         return False
      bitmap |= ch_bit_index_on
   return True


if __name__ == "__main__":
 import doctest

 doctest.testmod()







from __future__ import annotations

from collections import namedtuple





def 						__SCREAMING_SNAKE_CASE  (				UpperCamelCase__			,			UpperCamelCase__			,			UpperCamelCase__ )  ->				tuple:







			'''simple docstring'''

			UpperCAmelCase   		=				namedtuple('''result'''			,			'''name value''' )
			if (voltage, current, power).count(0 ) != 1:
						raise ValueError('''Only one argument must be 0''' )
			elif power < 0:
						raise ValueError(
						    '''Power cannot be negative in any electrical/electronics system''' )
			elif voltage == 0:
						return result('''voltage'''			,			power / current )
			elif current == 0:
						return result('''current'''			,			power / voltage )
			elif power == 0:
						return result('''power'''			,			float(round(abs(voltage * current )			,			2 ) ) )
			else:
						raise ValueError('''Exactly one argument must be 0''' )


if __name__ == "__main__":
				import doctest

				doctest.testmod()



