



'''simple docstring'''

from typing import TYPE_CHECKING

# rely on isort to merge the imports
from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


__lowerCAmelCase									=   {'''configuration_focalnet''': ['''FOCALNET_PRETRAINED_CONFIG_ARCHIVE_MAP''', '''FocalNetConfig''']}


try:
							if not is_torch_available():
														raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
							pass
else:
							__lowerCAmelCase									=   [
							    '''FOCALNET_PRETRAINED_MODEL_ARCHIVE_LIST''',
							    '''FocalNetForImageClassification''',
							    '''FocalNetForMaskedImageModeling''',
							    '''FocalNetBackbone''',
							    '''FocalNetModel''',
							    '''FocalNetPreTrainedModel''',
							]

if TYPE_CHECKING:
							from .configuration_focalnet import FOCALNET_PRETRAINED_CONFIG_ARCHIVE_MAP, FocalNetConfig

							try:
														if not is_torch_available():
																					raise OptionalDependencyNotAvailable()
							except OptionalDependencyNotAvailable:
														pass
							else:
														from .modeling_focalnet import (
														    FOCALNET_PRETRAINED_MODEL_ARCHIVE_LIST,
														    FocalNetBackbone,
														    FocalNetForImageClassification,
														    FocalNetForMaskedImageModeling,
														    FocalNetModel,
														    FocalNetPreTrainedModel,
														)

else:
							import sys

							__lowerCAmelCase									=   _LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)











def 		A_				(     _lowerCAmelCase = 50     )						-> int:
 UpperCamelCase	:					List[Any]       	=   [[0] * 3 for _ in range(length + 1     )]

 for row_length in range(length + 1     ):
  for tile_length in range(2							,   5     ):
   for tile_start in range(row_length - tile_length + 1     ):
    different_colour_ways_number[row_length][tile_length - 2] += (
        different_colour_ways_number[row_length - tile_start - tile_length][
            tile_length - 2
        ]
        + 1
    )

 return sum(different_colour_ways_number[length]     )


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