"""simple docstring"""
def 				lowerCAmelCase__      (     _UpperCamelCase    :			str	,     _UpperCamelCase    :			List[str]   )   ->			int:





      """simple docstring"""






      return int((input_a, input_a).count(0   ) == 0   )





def 				lowerCAmelCase__      (     )   ->			Optional[int]:





      """simple docstring"""






      assert and_gate(0	,     0   ) == 0
      assert and_gate(0	,     1   ) == 0
      assert and_gate(1	,     0   ) == 0
      assert and_gate(1	,     1   ) == 1


if __name__ == "__main__":
     test_and_gate()
     print(and_gate(1, 0))
     print(and_gate(0, 0))
     print(and_gate(0, 1))
     print(and_gate(1, 1))



"""simple docstring"""
def 				lowerCAmelCase__      (     _UpperCamelCase    :			str   )   ->			bool:





						"""simple docstring"""






						if not all(x.isalpha() for x in string   ):
												raise ValueError('String must only contain alphabetic characters.'   )

						snake_case        =     sorted(string.lower()   )
						return len(_UpperCamelCase   ) == len(set(_UpperCamelCase   )   )


if __name__ == "__main__":
					SCREAMING_SNAKE_CASE__   =					input("Enter a string ").strip()

					SCREAMING_SNAKE_CASE__   =					is_isogram(input_str)
					print(f"""{input_str} is {'an' if isogram else 'not an'} isogram.""")


