


import os







def 						lowerCamelCase(   a__ = "input.txt"):

				'''simple docstring'''





				with open(os.path.join(os.path.dirname(a__)	,a__)) as input_file:
								_SCREAMING_SNAKE_CASE			  =[
								    [int(a__) for element in line.split(''',''')]
								    for line in input_file.readlines()
								]

				_SCREAMING_SNAKE_CASE			  =len(a__)
				_SCREAMING_SNAKE_CASE			  =len(matrix[0])

				_SCREAMING_SNAKE_CASE			  =[[-1 for _ in range(a__)] for _ in range(a__)]
				for i in range(a__):
								_SCREAMING_SNAKE_CASE			  =matrix[i][0]

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

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

								for i in range(rows - 2	,-1	,-1):
												_SCREAMING_SNAKE_CASE			  =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 datetime import datetime

import matplotlib.pyplot as plt
import torch







def 						lowerCamelCase(   a__):
				for param in module.parameters():
								_SCREAMING_SNAKE_CASE			  =False







def 						lowerCamelCase(   ):
				_SCREAMING_SNAKE_CASE			  ='''cuda''' if torch.cuda.is_available() else '''cpu'''
				if torch.backends.mps.is_available() and torch.backends.mps.is_built():
								_SCREAMING_SNAKE_CASE			  ='''mps'''
				if device == "mps":
								print(
								    '''WARNING: MPS currently doesn\'t seem to work, and messes up backpropagation without any visible torch'''
								    ''' errors. I recommend using CUDA on a colab notebook or CPU instead if you\'re facing inexplicable issues'''
								    ''' with generations.''')
				return device







def 						lowerCamelCase(   a__):
				_SCREAMING_SNAKE_CASE			  =plt.imshow(a__)
				fig.axes.get_xaxis().set_visible(a__)
				fig.axes.get_yaxis().set_visible(a__)
				plt.show()







def 						lowerCamelCase(   ):
				_SCREAMING_SNAKE_CASE			  =datetime.now()
				_SCREAMING_SNAKE_CASE			  =current_time.strftime('''%H:%M:%S''')
				return timestamp