





from __future__ import annotations







def 			A__							(    SCREAMING_SNAKE_CASE__)   ->    List[str]:

  # preprocessing the first row
  for i in range(1					,					len(matrix[0])):
    matrix[0][i] += matrix[0][i - 1]

  # preprocessing the first column
  for i in range(1					,					len(UpperCamelCase__)):
    matrix[i][0] += matrix[i - 1][0]

  # updating the path cost for current position
  for i in range(1					,					len(UpperCamelCase__)):
    for j in range(1					,					len(matrix[0])):
      matrix[i][j] += min(matrix[i - 1][j]					,					matrix[i][j - 1])

  return matrix[-1][-1]


if __name__ == "__main__":
      import doctest

      doctest.testmod()














"""simple docstring"""




from collections.abc import Iterable
from typing import Generic, TypeVar

_snake_case          =   TypeVar('_T')






class        UpperCamelCase			(	Generic[_T]      ):


 def __init__(     self		:						Optional[int]							,						UpperCAmelCase__		:						Iterable[_T] | None = None							)					->       None:
   _a  :       list[_T]             =	list(iterable or []							)
   _a  :       list[_T]             =	[]


 def __len__(     self		:						str							)					->       int:
   return len(self._stacka							) + len(self._stacka							)


 def __repr__(     self		:						List[str]							)					->       str:
   return f"""Queue({tuple(self._stacka[::-1] + self._stacka							)})"""


 def _lowercase	(     self		:						Union[str, Any]							,						UpperCAmelCase__		:						_T							)					->       None:
   self._stacka.append(UpperCAmelCase__							)







 def _lowercase	(     self		:						Optional[Any]							)					->       _T:
   _a  :       Any             =	self._stacka.pop
   _a  :       Union[str, Any]             =	self._stacka.append

   if not self._stacka:
     while self._stacka:
       stacka_append(stacka_pop()							)

   if not self._stacka:
     raise IndexError("""Queue is empty"""							)
   return self._stacka.pop()


if __name__ == "__main__":
 from doctest import testmod

 testmod()

