




from __future__ import annotations

def      A      (      _SCREAMING_SNAKE_CASE    )	-> bool:
       lowerCamelCase   :      List[Any]			 =					len(_SCREAMING_SNAKE_CASE    )
       # We need to create solution object to save path.
       lowerCamelCase   :      Dict			 =					[[0 for _ in range(_SCREAMING_SNAKE_CASE    )] for _ in range(_SCREAMING_SNAKE_CASE    )]
       lowerCamelCase   :      str			 =					run_maze(_SCREAMING_SNAKE_CASE ,0 ,0 ,_SCREAMING_SNAKE_CASE    )
       if solved:
              print("\n".join(str(_SCREAMING_SNAKE_CASE    ) for row in solutions    )    )
       else:
              print("No solution exists!"    )
       return solved

def      A      (      _SCREAMING_SNAKE_CASE ,_SCREAMING_SNAKE_CASE ,_SCREAMING_SNAKE_CASE ,_SCREAMING_SNAKE_CASE    )	-> bool:
       lowerCamelCase   :      int			 =					len(_SCREAMING_SNAKE_CASE    )
       # Final check point.
       if i == j == (size - 1):
              lowerCamelCase   :      Optional[Any]			 =					1
              return True

       lowerCamelCase   :      str			 =					(not i < 0) and (not j < 0)  # Check lower bounds
       lowerCamelCase   :      Any			 =					(i < size) and (j < size)  # Check upper bounds

       if lower_flag and upper_flag:
              # check for already visited and block points.
              lowerCamelCase   :      Tuple			 =					(not solutions[i][j]) and (not maze[i][j])
              if block_flag:
                     # check visited
                     lowerCamelCase   :      Tuple			 =					1

                     # check for directions
                     if (
                         run_maze(_SCREAMING_SNAKE_CASE ,i + 1 ,_SCREAMING_SNAKE_CASE ,_SCREAMING_SNAKE_CASE    )
                         or run_maze(_SCREAMING_SNAKE_CASE ,_SCREAMING_SNAKE_CASE ,j + 1 ,_SCREAMING_SNAKE_CASE    )
                         or run_maze(_SCREAMING_SNAKE_CASE ,i - 1 ,_SCREAMING_SNAKE_CASE ,_SCREAMING_SNAKE_CASE    )
                         or run_maze(_SCREAMING_SNAKE_CASE ,_SCREAMING_SNAKE_CASE ,j - 1 ,_SCREAMING_SNAKE_CASE    )
                     ):
                            return True

                     lowerCamelCase   :      int			 =					0
                     return False
       return False


if __name__ == "__main__":
       import doctest

       doctest.testmod()












def      A      (      _SCREAMING_SNAKE_CASE ,_SCREAMING_SNAKE_CASE    )	-> list:
       lowerCamelCase   :      Dict			 =					len(_SCREAMING_SNAKE_CASE    )
       lowerCamelCase   :      Union[str, Any]			 =					[]
       for i in range(len(_SCREAMING_SNAKE_CASE    ) - pat_len + 1    ):
              lowerCamelCase   :      Dict			 =					True
              for j in range(_SCREAMING_SNAKE_CASE    ):
                     if s[i + j] != pattern[j]:
                            lowerCamelCase   :      Optional[int]			 =					False
                            break
              if match_found:
                     position.append(_SCREAMING_SNAKE_CASE    )
       return position


if __name__ == "__main__":
       assert naive_pattern_search('ABCDEFG', 'DE') == [3]
       print(naive_pattern_search('ABAAABCDBBABCDDEBCABC', 'ABC'))






