





'''simple docstring'''






from typing import List

from .keymap import KEYMAP, get_character
def    UpperCamelCase__      (		lowerCAmelCase  ):





      """simple docstring"""


      def decorator(lowerCAmelCase  ):
            _lowerCAmelCase							     =							getattr(UpperCAmelCase_							,	"""handle_key"""							,	[]  )
            handle += [key]
            setattr(UpperCAmelCase_							,	"""handle_key"""							,	UpperCAmelCase_  )
            return func

      return decorator
def    UpperCamelCase__      (		*lowerCAmelCase  ):





      """simple docstring"""


      def decorator(lowerCAmelCase  ):
            _lowerCAmelCase							     =							getattr(UpperCAmelCase_							,	"""handle_key"""							,	[]  )
            handle += keys
            setattr(UpperCAmelCase_							,	"""handle_key"""							,	UpperCAmelCase_  )
            return func

      return decorator




class  UpperCAmelCase     (			snake_case_   ):




      def __new__(			cls			: Dict			,			__snake_case			: int			,			__snake_case			: List[Any]			,			__snake_case			: str  )				->      List[str]:
            _lowerCAmelCase							     =							super().__new__(cls			,			__snake_case			,			__snake_case			,			__snake_case  )
            if not hasattr(__snake_case			,			"""key_handler"""  ):
                  setattr(__snake_case			,			"""key_handler"""			,			{}  )
            setattr(__snake_case			,			"""handle_input"""			,			KeyHandler.handle_input  )

            for value in attrs.values():
                  _lowerCAmelCase							     =							getattr(__snake_case			,			"""handle_key"""			,			[]  )
                  for key in handled_keys:
                        _lowerCAmelCase							     =							value
            return new_cls




      @staticmethod
      def 				lowercase__    (			cls			: Any  )				->      int:
            _lowerCAmelCase							     =							get_character()
            if char != KEYMAP["undefined"]:
                  _lowerCAmelCase							     =							ord(__snake_case  )
            _lowerCAmelCase							     =							cls.key_handler.get(__snake_case  )
            if handler:
                  _lowerCAmelCase							     =							char
                  return handler(cls  )
            else:
                  return None




def    UpperCamelCase__      (		cls  ):





      """simple docstring"""


      return KeyHandler(cls.__name__							,	cls.__bases__							,	cls.__dict__.copy()  )










'''simple docstring'''

import os





def __snake_case					(      UpperCAmelCase_						:						str = "matrix.txt"		):
 with open(os.path.join(os.path.dirname(UpperCAmelCase_		)					,				UpperCAmelCase_		)		) as in_file:
  lowerCamelCase_      =  in_file.read()

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

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

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

 return dp[-1][-1]


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



