




from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


lowercase_		=							{
    """configuration_wav2vec2_conformer""": [
        """WAV2VEC2_CONFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP""",
        """Wav2Vec2ConformerConfig""",
    ],
}


try:
				if not is_torch_available():
								raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
				pass
else:
				lowercase_		=							[
				    """WAV2VEC2_CONFORMER_PRETRAINED_MODEL_ARCHIVE_LIST""",
				    """Wav2Vec2ConformerForAudioFrameClassification""",
				    """Wav2Vec2ConformerForCTC""",
				    """Wav2Vec2ConformerForPreTraining""",
				    """Wav2Vec2ConformerForSequenceClassification""",
				    """Wav2Vec2ConformerForXVector""",
				    """Wav2Vec2ConformerModel""",
				    """Wav2Vec2ConformerPreTrainedModel""",
				]

if TYPE_CHECKING:
				from .configuration_wavaveca_conformer import (
				    WAV2VEC2_CONFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP,
				    WavaVecaConformerConfig,
				)

				try:
								if not is_torch_available():
												raise OptionalDependencyNotAvailable()
				except OptionalDependencyNotAvailable:
								pass
				else:
								from .modeling_wavaveca_conformer import (
								    WAV2VEC2_CONFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
								    WavaVecaConformerForAudioFrameClassification,
								    WavaVecaConformerForCTC,
								    WavaVecaConformerForPreTraining,
								    WavaVecaConformerForSequenceClassification,
								    WavaVecaConformerForXVector,
								    WavaVecaConformerModel,
								    WavaVecaConformerPreTrainedModel,
								)

else:
				import sys

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











"""simple docstring"""







def 						lowercase__(A = 1_000						)				->int:




						"""simple docstring"""



						lowercase__				:      Any=       [0, 3, 3, 5, 4, 4, 3, 5, 5, 4, 3, 6, 6, 8, 8, 7, 7, 9, 8, 8]
						# number of letters in twenty, thirty, ..., ninety (0 for numbers less than
						# 20 due to inconsistency in teens)
						lowercase__				:      List[str]=       [0, 0, 6, 6, 5, 5, 5, 7, 6, 6]

						lowercase__				:      Dict=       0

						for i in range(1					,		n + 1						):
												if i < 1_000:
																		if i >= 100:
																								# add number of letters for "n hundred"
																								count += ones_counts[i // 100] + 7

																								if i % 100 != 0:
																														# add number of letters for "and" if number is not multiple
																														# of 100
																														count += 3

																		if 0 < i % 100 < 20:
																								# add number of letters for one, two, three, ..., nineteen
																								# (could be combined with below if not for inconsistency in
																								# teens)
																								count += ones_counts[i % 100]
																		else:
																								# add number of letters for twenty, twenty one, ..., ninety
																								# nine
																								count += ones_counts[i % 10]
																								count += tens_counts[(i % 100 - i % 10) // 10]
												else:
																		count += ones_counts[i // 1_000] + 8
						return count


if __name__ == "__main__":
			print(solution(int(input().strip())))






