

'''simple docstring'''



import os







def   a__			(    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() = }""")









'''simple docstring'''



from typing import Optional, Union

import torch
from torch import nn

from ...configuration_utils import ConfigMixin, register_to_config
from ...models.modeling_utils import ModelMixin







class 		lowerCAmelCase__  ( a					,   a   ):



 """simple docstring"""



 @register_to_config
 def __init__(						self   :			int   ,				__SCREAMING_SNAKE_CASE   :			int = 768   ,				)    ->					int:


      """simple docstring"""




      super().__init__()

      __SCREAMING_SNAKE_CASE      = nn.Parameter(torch.zeros(1   ,				__SCREAMING_SNAKE_CASE     )     )
      __SCREAMING_SNAKE_CASE      = nn.Parameter(torch.ones(1   ,				__SCREAMING_SNAKE_CASE     )     )
 def  UpperCAmelCase__						(						self   :			Any   ,				__SCREAMING_SNAKE_CASE   :			Optional[Union[str, torch.device]] = None   ,				__SCREAMING_SNAKE_CASE   :			Optional[torch.dtype] = None   ,				)    ->					List[str]:


      """simple docstring"""




      __SCREAMING_SNAKE_CASE      = nn.Parameter(self.mean.to(__SCREAMING_SNAKE_CASE     ).to(__SCREAMING_SNAKE_CASE     )     )
      __SCREAMING_SNAKE_CASE      = nn.Parameter(self.std.to(__SCREAMING_SNAKE_CASE     ).to(__SCREAMING_SNAKE_CASE     )     )
      return self
 def  UpperCAmelCase__						(						self   :			Optional[Any]   ,				__SCREAMING_SNAKE_CASE   :			Optional[int]     )    ->					Optional[int]:


      """simple docstring"""




      __SCREAMING_SNAKE_CASE      = (embeds - self.mean) * 1.0 / self.std
      return embeds


 def  UpperCAmelCase__						(						self   :			Tuple   ,				__SCREAMING_SNAKE_CASE   :			Any     )    ->					Optional[int]:


      """simple docstring"""




      __SCREAMING_SNAKE_CASE      = (embeds * self.std) + self.mean
      return embeds






