




'''simple docstring'''




def      a_							(      __snake_case							:			int = 400_0000   )							->						int:



       """simple docstring"""
       lowerCamelCase_							=[]
       lowerCamelCase_,      lowerCamelCase_							=0, 1
       while b <= n:
              if b % 2 == 0:
                     even_fibs.append(__snake_case   )
              lowerCamelCase_,      lowerCamelCase_							=b, a + b
       return sum(__snake_case   )


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











from typing import TYPE_CHECKING

from ....utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


__lowerCamelCase       :     Optional[int]   =     {"""configuration_mmbt""": ["""MMBTConfig"""]}

try:
    if not is_torch_available():
        raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
    pass
else:
    __lowerCamelCase       :     List[Any]   =     ["""MMBTForClassification""", """MMBTModel""", """ModalEmbeddings"""]


if TYPE_CHECKING:
    from .configuration_mmbt import MMBTConfig

    try:
        if not is_torch_available():
            raise OptionalDependencyNotAvailable()
    except OptionalDependencyNotAvailable:
        pass
    else:
        from .modeling_mmbt import MMBTForClassification, MMBTModel, ModalEmbeddings

else:
    import sys

    __lowerCamelCase       :     int   =     _LazyModule(__name__, globals()["""__file__"""], _import_structure, module_spec=__spec__)
