"""simple docstring"""
from __future__ import annotations

from random import choice





def 				lowerCAmelCase__      (     _UpperCamelCase    :			Dict   )   ->			List[Any]:





						"""simple docstring"""






						return choice(_UpperCamelCase   )





def 				lowerCAmelCase__      (     _UpperCamelCase    :			list[int]	,     _UpperCamelCase    :			int   )   ->			int:





						"""simple docstring"""






						snake_case        =     random_pivot(_UpperCamelCase   )

						# partition based on pivot
						# linear time
						snake_case        =     [e for e in lst if e < pivot]
						snake_case        =     [e for e in lst if e > pivot]

						# if we get lucky, pivot might be the element we want.
						# we can easily see this:
						# small (elements smaller than k)
						# + pivot (kth element)
						# + big (elements larger than k)
						if len(_UpperCamelCase   ) == k - 1:
												return pivot
						# pivot is in elements bigger than k
						elif len(_UpperCamelCase   ) < k - 1:
												return kth_number(_UpperCamelCase	,     k - len(_UpperCamelCase   ) - 1   )
						# pivot is in elements smaller than k
						else:
												return kth_number(_UpperCamelCase	,     _UpperCamelCase   )


if __name__ == "__main__":
					import doctest

					doctest.testmod()



"""simple docstring"""
import os





def 				lowerCAmelCase__      (     _UpperCamelCase    :			str = "matrix.txt"   )   ->			int:





						"""simple docstring"""






						with open(os.path.join(os.path.dirname(_UpperCamelCase   )	,     _UpperCamelCase   )   ) as in_file:
												snake_case        =     in_file.read()

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

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

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

						return dp[-1][-1]


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


