
import os

def  __snake_case							(	__magic_name__ = "input.txt"						):







				'''simple docstring'''


				with open(os.path.join(os.path.dirname(SCREAMING_SNAKE_CASE__						)		,    SCREAMING_SNAKE_CASE__						)						) as input_file:
								lowercase         =      [
								    [int(SCREAMING_SNAKE_CASE__						) for element in line.split(","						)]
								    for line in input_file.readlines()
								]

				lowercase         =      len(SCREAMING_SNAKE_CASE__						)
				lowercase         =      len(matrix[0]						)

				lowercase         =      [[-1 for _ in range(SCREAMING_SNAKE_CASE__						)] for _ in range(SCREAMING_SNAKE_CASE__						)]
				for i in range(SCREAMING_SNAKE_CASE__						):
								lowercase         =      matrix[i][0]

				for j in range(1		,    SCREAMING_SNAKE_CASE__						):
								for i in range(SCREAMING_SNAKE_CASE__						):
												lowercase         =      minimal_path_sums[i][j - 1] + matrix[i][j]

								for i in range(1		,    SCREAMING_SNAKE_CASE__						):
												lowercase         =      min(
												    minimal_path_sums[i][j]		,    minimal_path_sums[i - 1][j] + matrix[i][j]						)

								for i in range(rows - 2		,    -1		,    -1						):
												lowercase         =      min(
												    minimal_path_sums[i][j]		,    minimal_path_sums[i + 1][j] + matrix[i][j]						)

				return min(minimal_path_sums_row[-1] for minimal_path_sums_row in minimal_path_sums						)


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




from math import isqrt




def       a_ (       SCREAMING_SNAKE_CASE__   : int	):
       '''simple docstring'''





       _lowerCamelCase			:						Optional[int]            =[True] * max_number
       for i in range(2						,     isqrt(max_number - 1	) + 1	):
              if is_prime[i]:
                     for j in range(i**2						,     SCREAMING_SNAKE_CASE__						,     SCREAMING_SNAKE_CASE__	):
                            _lowerCamelCase			:						str            =False

       return [i for i in range(2						,     SCREAMING_SNAKE_CASE__	) if is_prime[i]]




def       a_ (       SCREAMING_SNAKE_CASE__   : int = 10**8	):
       '''simple docstring'''





       _lowerCamelCase			:						Union[str, Any]            =calculate_prime_numbers(max_number // 2	)

       _lowerCamelCase			:						Dict            =0
       _lowerCamelCase			:						int            =0
       _lowerCamelCase			:						Optional[Any]            =len(SCREAMING_SNAKE_CASE__	) - 1
       while left <= right:
              while prime_numbers[left] * prime_numbers[right] >= max_number:
                     right -= 1
              semiprimes_count += right - left + 1
              left += 1

       return semiprimes_count


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


