


'''simple docstring'''


import json

import requests

from .fetch_github_info import AUTHENTICATED_USER_ENDPOINT, fetch_github_info


def       snake_case_       (  SCREAMING_SNAKE_CASE__					):







				"""simple docstring"""





				class    lowercase__  :





											'''simple docstring'''


											def __init__(   self   , __snake_case  ):
															assert isinstance(UpperCamelCase_   , (bytes, str)  )
															_SCREAMING_SNAKE_CASE			:	List[str]							=				content






											def UpperCAmelCase_     (   self  ):
															return json.loads(self.content  )

				def mock_response(*SCREAMING_SNAKE_CASE__							,				**SCREAMING_SNAKE_CASE__					):
								assert args[0] == AUTHENTICATED_USER_ENDPOINT
								assert "Authorization" in kwargs["headers"]
								assert kwargs["headers"]["Authorization"].startswith("""token """					)
								assert "Accept" in kwargs["headers"]
								return FakeResponse(B"""{\"login\":\"test\",\"id\":1}"""					)

				monkeypatch.setattr(__lowercase							,				"""get"""							,				__lowercase					)
				_SCREAMING_SNAKE_CASE			:	str							=				fetch_github_info("""token"""					)
				assert result["login"] == "test"
				assert result["id"] == 1








'''simple docstring'''


def       snake_case_       (  SCREAMING_SNAKE_CASE__ = 1000					):







				"""simple docstring"""





				_SCREAMING_SNAKE_CASE			:	Union[str, 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)
				_SCREAMING_SNAKE_CASE			:	str							=				[0, 0, 6, 6, 5, 5, 5, 7, 6, 6]

				_SCREAMING_SNAKE_CASE			:	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())))




