"""simple docstring"""



def    SCREAMING_SNAKE_CASE       (     snake_case,      snake_case):



     if mass < 0:
          raise ValueError('''The mass of a body cannot be negative''')
     return 0.5 * mass * abs(lowerCAmelCase_) * abs(lowerCAmelCase_)


if __name__ == "__main__":
       import doctest

       doctest.testmod(verbose=True)
"""simple docstring"""



import re





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


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