"""simple docstring"""






import os




def 						SCREAMING_SNAKE_CASE					(  __UpperCAmelCase = "matrix.txt"       ):
				with open(os.path.join(os.path.dirname(__UpperCAmelCase       )  ,					__UpperCAmelCase       )       ) as in_file:
								SCREAMING_SNAKE_CASE__		  =				in_file.read()

				SCREAMING_SNAKE_CASE__		  =				[[int(__UpperCAmelCase       ) for cell in row.split(","       )] for row in data.strip().splitlines()]
				SCREAMING_SNAKE_CASE__		  =				[[0 for cell in row] for row in grid]
				SCREAMING_SNAKE_CASE__		  =				len(grid[0]       )

				SCREAMING_SNAKE_CASE__		  =				[[0 for i in range(__UpperCAmelCase       )] for j in range(__UpperCAmelCase       )]
				SCREAMING_SNAKE_CASE__		  =				grid[0][0]
				for i in range(1  ,					__UpperCAmelCase       ):
								SCREAMING_SNAKE_CASE__		  =				grid[0][i] + dp[0][i - 1]
				for i in range(1  ,					__UpperCAmelCase       ):
								SCREAMING_SNAKE_CASE__		  =				grid[i][0] + dp[i - 1][0]

				for i in range(1  ,					__UpperCAmelCase       ):
								for j in range(1  ,					__UpperCAmelCase       ):
												SCREAMING_SNAKE_CASE__		  =				grid[i][j] + min(dp[i - 1][j]  ,					dp[i][j - 1]       )

				return dp[-1][-1]


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





"""simple docstring"""






from typing import TYPE_CHECKING

from ....utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available


_A   					=    {'configuration_van': ['VAN_PRETRAINED_CONFIG_ARCHIVE_MAP', 'VanConfig']}


try:
						if not is_torch_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						_A   					=    [
						    'VAN_PRETRAINED_MODEL_ARCHIVE_LIST',
						    'VanForImageClassification',
						    'VanModel',
						    'VanPreTrainedModel',
						]

if TYPE_CHECKING:
						from .configuration_van import VAN_PRETRAINED_CONFIG_ARCHIVE_MAP, VanConfig

						try:
												if not is_torch_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .modeling_van import (
												    VAN_PRETRAINED_MODEL_ARCHIVE_LIST,
												    VanForImageClassification,
												    VanModel,
												    VanPreTrainedModel,
												)

else:
						import sys

						_A   					=    _LazyModule(__name__, globals()['__file__'], _import_structure)




