






"""simple docstring"""







from __future__ import annotations






def    _lowerCAmelCase							(   lowerCAmelCase		):







       '''simple docstring'''
       return len(set(lowerCAmelCase		)		) == len(lowerCAmelCase		)


if __name__ == "__main__":
 import doctest

 doctest.testmod()




'''simple docstring'''






import re


def    _snake_case  (	A			)		->       bool:
							lowerCAmelCase__			  =      re.compile(R'''^(\+91[\-\s]?)?[0]?(91)?[789]\d{9}$'''			)
							if match := re.search(A					,       A			):
														return match.string == phone
							return False


if __name__ == "__main__":
		print(indian_phone_validator('''+918827897895'''))