


"""simple docstring"""


def    a__       ( __lowercase = 1000      )		->		int:
				_A         =	[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)
				_A         =	[0, 0, 6, 6, 5, 5, 5, 7, 6, 6]

				_A         =	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"""


def    a__       ( __lowercase = 20      )		->		int:

				try:
								_A         =	int(__lowercase      )
				except (TypeError, ValueError):
								raise TypeError("Parameter n must be int or castable to int."      )
				if n <= 0:
								raise ValueError("Parameter n must be greater than or equal to one."      )
				_A         =	0
				while 1:
								i += n * (n - 1)
								_A         =	0
								for j in range(2   ,	__lowercase      ):
												if i % j != 0:
																_A         =	1
																break
								if nfound == 0:
												if i == 0:
																_A         =	1
												return i
				return None


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