





'''simple docstring'''
import os
def 				lowercase__   (   __lowercase						:  str = "matrix.txt"     ) ->      int:



       """simple docstring"""






       with open(os.path.join(os.path.dirname(__lowercase     )				,  __lowercase     )     ) as in_file:
              __UpperCamelCase       =  in_file.read()

       __UpperCamelCase       =  [[int(__lowercase     ) for cell in row.split(','     )] for row in data.strip().splitlines()]
       __UpperCamelCase       =  [[0 for cell in row] for row in grid]
       __UpperCamelCase       =  len(grid[0]     )

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

       for i in range(1				,  __lowercase     ):
              for j in range(1				,  __lowercase     ):
                     __UpperCamelCase       =  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 __future__ import annotations

from typing import Any

class      snake_case     (    __lowerCamelCase       ):




 """simple docstring"""



 pass






class      snake_case     :




 """simple docstring"""



 def __init__(       self       :							List[Any]							,	__A       :							Any	):
        __UpperCamelCase       =  data
        __UpperCamelCase       =  None






 def __iter__(       self       :							Optional[Any]	):
        __UpperCamelCase       =  self
        __UpperCamelCase       =  []
        while node:
               if node in visited:
                      raise ContainsLoopError
               visited.append(__A	)
               yield node.data
               __UpperCamelCase       =  node.next_node






 @property
 def        _lowerCamelCase					(       self       :							List[str]	):
        try:
               list(self	)
               return False
        except ContainsLoopError:
               return True


if __name__ == "__main__":
    a__							:							Dict =Node(1)
    a__							:							Optional[int] =Node(2)
    a__							:							List[str] =Node(3)
    a__							:							Optional[int] =Node(4)
    print(root_node.has_loop)  # False
    a__							:							str =root_node.next_node
    print(root_node.has_loop)  # True

    a__							:							Optional[int] =Node(5)
    a__							:							List[Any] =Node(6)
    a__							:							int =Node(5)
    a__							:							Tuple =Node(6)
    print(root_node.has_loop)  # False

    a__							:							str =Node(1)
    print(root_node.has_loop)  # False
