



"""simple docstring"""

def    __snake_case       (  __A			:	int = 1000    )    ->					int:






				'''simple docstring'''
				SCREAMING_SNAKE_CASE	:       int 							=    [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)
				SCREAMING_SNAKE_CASE	:       List[str] 							=    [0, 0, 6, 6, 5, 5, 5, 7, 6, 6]

				SCREAMING_SNAKE_CASE	:       Optional[Any] 							=    0

				for i in range(1       ,		n + 1    ):
								if i < 1000:
												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 // 1000] + 8
				return count


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










"""simple docstring"""

import platform
from argparse import ArgumentParser

import huggingface_hub
import pandas
import pyarrow

from datasets import __version__ as version
from datasets.commands import BaseDatasetsCLICommand
def    __snake_case       (  __A			:	Union[str, Any]    )    ->					Tuple:






				'''simple docstring'''
				return EnvironmentCommand()







class 						lowerCAmelCase__	(  _lowerCamelCase   ):


	'''simple docstring'''







	@staticmethod
	def  _lowerCAmelCase    (			_SCREAMING_SNAKE_CASE							:					ArgumentParser						)	->  str:





					"""simple docstring"""


					SCREAMING_SNAKE_CASE	:       int 							=    parser.add_parser('env'    ,					help='Print relevant system environment info.'						)
					download_parser.set_defaults(func=_SCREAMING_SNAKE_CASE						)





	def  _lowerCAmelCase    (			self							:					Optional[int]						)	->  Optional[int]:





					"""simple docstring"""


					SCREAMING_SNAKE_CASE	:       int 							=    {
					    '`datasets` version': version,
					    'Platform': platform.platform(),
					    'Python version': platform.python_version(),
					    'Huggingface_hub version': huggingface_hub.__version__,
					    'PyArrow version': pyarrow.__version__,
					    'Pandas version': pandas.__version__,
					}

					print('\nCopy-and-paste the text below in your GitHub issue.\n'						)
					print(self.format_dict(_SCREAMING_SNAKE_CASE						)						)

					return info







	@staticmethod
	def  _lowerCAmelCase    (			_SCREAMING_SNAKE_CASE							:					Optional[Any]						)	->  List[Any]:





					"""simple docstring"""


					return "\n".join([f"""- {prop}: {val}""" for prop, val in d.items()]						) + "\n"





