
def 						lowerCamelCase__							(      a = 10_00   )   ->     int:
   _A:						List[Any]	    = 0
   _A:						Optional[Any]	    = (n - 1) // 3
   total += ((terms) * (6 + (terms - 1) * 3)) // 2  # total of an A.P.
   _A:						List[str]	    = (n - 1) // 5
   total += ((terms) * (10 + (terms - 1) * 5)) // 2
   _A:						Optional[int]	    = (n - 1) // 15
   total -= ((terms) * (30 + (terms - 1) * 15)) // 2
   return total


if __name__ == "__main__":
   print(F"""{solution() = }""")






import pytest

from datasets.utils.version import Version






@pytest.mark.parametrize(
    '''other, expected_equality'''	,	[
        (Version('''1.0.0'''   ), True),
        ('''1.0.0''', True),
        (Version('''2.0.0'''   ), False),
        ('''2.0.0''', False),
        ('''1''', False),
        ('''a''', False),
        (1, False),
        (None, False),
    ]	,	)
def 						lowerCamelCase__							(      a	,	a   )   ->     str:
   _A:						Tuple	    = Version('''1.0.0'''   )
   assert (version == other) is expected_equality
   assert (version != other) is not expected_equality
   assert (hash(a   ) == hash(a   )) is expected_equality



