
"""simple docstring"""







from math import ceil
def    __lowerCAmelCase    (_UpperCamelCase = 1001		):
	__lowerCAmelCase      :						Any						      =				1

	for i in range(1	,  int(ceil(n / 2.0		)		)		):
		__lowerCAmelCase      :						int						      =				2 * i + 1
		__lowerCAmelCase      :						List[str]						      =				2 * i
		__lowerCAmelCase      :						Union[str, Any]						      =				total + 4 * odd**2 - 6 * even

	return total


if __name__ == "__main__":
							import sys

							if len(sys.argv) == 1:
														print(solution())
							else:
														try:
																					lowerCamelCase__        =		int(sys.argv[1])
																					print(solution(n))
														except ValueError:
																					print("""Invalid entry - please enter a number""")

"""simple docstring"""







lowerCamelCase__        =		"""0.21.0"""

from .accelerator import Accelerator
from .big_modeling import (
    cpu_offload,
    cpu_offload_with_hook,
    disk_offload,
    dispatch_model,
    init_empty_weights,
    init_on_device,
    load_checkpoint_and_dispatch,
)
from .data_loader import skip_first_batches
from .launchers import debug_launcher, notebook_launcher
from .state import PartialState
from .utils import (
    DeepSpeedPlugin,
    DistributedDataParallelKwargs,
    DistributedType,
    FullyShardedDataParallelPlugin,
    GradScalerKwargs,
    InitProcessGroupKwargs,
    find_executable_batch_size,
    infer_auto_device_map,
    is_rich_available,
    load_checkpoint_in_model,
    synchronize_rng_states,
)


if is_rich_available():
							from .utils import rich