






'''simple docstring'''

def 							snake_case					(     a_							: int	)       ->				Optional[int]:





						"""simple docstring"""

						if not grid or not grid[0]:
												raise TypeError("""The grid does not contain the appropriate information"""	)

						for cell_n in range(1    ,   len(grid[0]	)	):
												grid[0][cell_n] += grid[0][cell_n - 1]
						UpperCamelCase_				:   Tuple					    =							grid[0]

						for row_n in range(1    ,   len(_UpperCAmelCase	)	):
												UpperCamelCase_				:   Optional[Any]					    =							grid[row_n]
												UpperCamelCase_				:   Optional[int]					    =							fill_row(_UpperCAmelCase    ,   _UpperCAmelCase	)
												UpperCamelCase_				:   Any					    =							grid[row_n]

						return grid[-1][-1]



def 							snake_case					(     a_							: Dict    ,   a_							: Tuple	)       ->				Tuple:





						"""simple docstring"""

						current_row[0] += row_above[0]
						for cell_n in range(1    ,   len(_UpperCAmelCase	)	):
												current_row[cell_n] += min(current_row[cell_n - 1]    ,   row_above[cell_n]	)

						return current_row


if __name__ == "__main__":
						import doctest

						doctest.testmod()














'''simple docstring'''

def 							snake_case					(     a_							: int	)       ->				int:





      """simple docstring"""

      assert (
          isinstance(a_    ,   a_	) and number_of_steps > 0
      ), f"number_of_steps needs to be positive integer, your input {number_of_steps}"
      if number_of_steps == 1:
            return 1
      UpperCamelCase_    ,			UpperCamelCase_				:   str					    =							1, 1
      for _ in range(number_of_steps - 1	):
            UpperCamelCase_    ,			UpperCamelCase_				:   Tuple					    =							current + previous, current
      return current


if __name__ == "__main__":
      import doctest

      doctest.testmod()






