






def 	lowerCamelCase__      (  lowercase    ,  lowercase    ,  lowercase    ,  lowercase					):

  """simple docstring"""






  SCREAMING_SNAKE_CASE    ,	SCREAMING_SNAKE_CASE							:   Optional[Any]						    =     len(lowercase					), len(grid[0]					)
  if (
      min(lowercase    ,  lowercase					) < 0
      or row == row_length
      or col == col_length
      or (row, col) in visit
      or grid[row][col] == 1
  ):
    return 0
  if row == row_length - 1 and col == col_length - 1:
    return 1

  visit.add((row, col)					)

  SCREAMING_SNAKE_CASE							:   Union[str, Any]						    =     0
  count += depth_first_search(lowercase    ,  row + 1    ,  lowercase    ,  lowercase					)
  count += depth_first_search(lowercase    ,  row - 1    ,  lowercase    ,  lowercase					)
  count += depth_first_search(lowercase    ,  lowercase    ,  col + 1    ,  lowercase					)
  count += depth_first_search(lowercase    ,  lowercase    ,  col - 1    ,  lowercase					)

  visit.remove((row, col)					)
  return count


if __name__ == "__main__":
   import doctest

   doctest.testmod()











a__   :					Tuple 						=      "Tobias Carryer"

from time import time



class    UpperCAmelCase__:

   '''simple docstring'''




   def __init__(    self	:      str      ,					lowerCAmelCase	:      List[str]      ,					lowerCAmelCase	:      Any      ,					lowerCAmelCase	:      str      ,					lowerCAmelCase	:      str=int(time()))						->					List[Any]:  # noqa: B008




         """simple docstring"""

         lowercase__  =	multiplier
         lowercase__  =	increment
         lowercase__  =	modulo
         lowercase__  =	seed



   def       UpperCAmelCase		(    self	:      int)						->					Tuple:




         """simple docstring"""

         lowercase__  =	(self.multiplier * self.seed + self.increment) % self.modulo
         return self.seed


if __name__ == "__main__":
       # Show the LCG in action.
       a__   :					str 						=      LinearCongruentialGenerator(1_66_45_25, 10_13_90_42_23, 2 << 31)
       while True:
              print(lcg.next_number())
