



"""simple docstring"""






import os


def      _lowercase							(    __snake_case = "input.txt"      )		->  int:

			with open(os.path.join(os.path.dirname(__snake_case      )   ,__snake_case      )      ) as input_file:
						__lowerCAmelCase :    Union[str, Any]				=			[
						    [int(__snake_case      ) for element in line.split(","      )]
						    for line in input_file.readlines()
						]

			__lowerCAmelCase :    Optional[Any]				=			len(__snake_case      )
			__lowerCAmelCase :    List[str]				=			len(matrix[0]      )

			__lowerCAmelCase :    Union[str, Any]				=			[[-1 for _ in range(__snake_case      )] for _ in range(__snake_case      )]
			for i in range(__snake_case      ):
						__lowerCAmelCase :    Dict				=			matrix[i][0]

			for j in range(1   ,__snake_case      ):
						for i in range(__snake_case      ):
									__lowerCAmelCase :    List[Any]				=			minimal_path_sums[i][j - 1] + matrix[i][j]

						for i in range(1   ,__snake_case      ):
									__lowerCAmelCase :    Any				=			min(
									    minimal_path_sums[i][j]   ,minimal_path_sums[i - 1][j] + matrix[i][j]      )

						for i in range(rows - 2   ,-1   ,-1      ):
									__lowerCAmelCase :    str				=			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() = }""")




"""simple docstring"""






def      _lowercase							(    __snake_case   ,__snake_case      )		->  Tuple:
			# "extended trapezoidal rule"
			# int(f) = dx/2 * (f1 + 2f2 + ... + fn)
			__lowerCAmelCase :    Optional[Any]				=			(boundary[1] - boundary[0]) / steps
			__lowerCAmelCase :    List[Any]				=			boundary[0]
			__lowerCAmelCase :    Any				=			boundary[1]
			__lowerCAmelCase :    Dict				=			make_points(__snake_case   ,__snake_case   ,__snake_case      )
			__lowerCAmelCase :    List[str]				=			0.0
			y += (h / 2.0) * f(__snake_case      )
			for i in x_i:
						# print(i)
						y += h * f(__snake_case      )
			y += (h / 2.0) * f(__snake_case      )
			return y


def      _lowercase							(    __snake_case   ,__snake_case   ,__snake_case      )		->  Union[str, Any]:
			__lowerCAmelCase :    int				=			a + h
			while x < (b - h):
						yield x
						__lowerCAmelCase :    List[str]				=			x + h


def      _lowercase							(    __snake_case      )		->  Tuple:  # enter your function here
			__lowerCAmelCase :    int				=			(x - 0) * (x - 0)
			return y


def      _lowercase							(    )		->  int:
			__lowerCAmelCase :    Tuple				=			0.0  # Lower bound of integration
			__lowerCAmelCase :    Union[str, Any]				=			1.0  # Upper bound of integration
			__lowerCAmelCase :    Dict				=			10.0  # define number of steps or resolution
			__lowerCAmelCase :    Optional[Any]				=			[a, b]  # define boundary of integration
			__lowerCAmelCase :    Optional[int]				=			method_a(__snake_case   ,__snake_case      )
			print(F"""y = {y}"""      )


if __name__ == "__main__":
	main()