


"""simple docstring"""


import os




def   snake_case		(     )   ->      Optional[Any]:
      with open(os.path.dirname(UpperCamelCase__    ) + """/grid.txt"""    ) as f:
            lowerCamelCase					:					int        =	[]  # noqa: E741
            for _ in range(20    ):
                  l.append([int(UpperCamelCase__    ) for x in f.readline().split()]    )

            lowerCamelCase					:					Union[str, Any]        =	0

            # right
            for i in range(20    ):
                  for j in range(17    ):
                        lowerCamelCase					:					Dict        =	l[i][j] * l[i][j + 1] * l[i][j + 2] * l[i][j + 3]
                        if temp > maximum:
                              lowerCamelCase					:					Tuple        =	temp

        # down
            for i in range(17    ):
                  for j in range(20    ):
                        lowerCamelCase					:					Any        =	l[i][j] * l[i + 1][j] * l[i + 2][j] * l[i + 3][j]
                        if temp > maximum:
                              lowerCamelCase					:					Optional[Any]        =	temp

        # diagonal 1
            for i in range(17    ):
                  for j in range(17    ):
                        lowerCamelCase					:					List[Any]        =	l[i][j] * l[i + 1][j + 1] * l[i + 2][j + 2] * l[i + 3][j + 3]
                        if temp > maximum:
                              lowerCamelCase					:					List[str]        =	temp

        # diagonal 2
            for i in range(17    ):
                  for j in range(3			,				20    ):
                        lowerCamelCase					:					List[str]        =	l[i][j] * l[i + 1][j - 1] * l[i + 2][j - 2] * l[i + 3][j - 3]
                        if temp > maximum:
                              lowerCamelCase					:					List[Any]        =	temp
            return maximum


if __name__ == "__main__":
    print(solution())








"""simple docstring"""


from __future__ import annotations

__lowerCamelCase      :int	    =		10




def   snake_case		(     UpperCamelCase__       :						list[int]    )   ->      list[int]:
      lowerCamelCase					:					int        =	1
      lowerCamelCase					:					Union[str, Any]        =	max(UpperCamelCase__    )
      while placement <= max_digit:
            # declare and initialize empty buckets
            lowerCamelCase					:					list[list]        =	[[] for _ in range(UpperCamelCase__    )]
            # split list_of_ints between the buckets
            for i in list_of_ints:
                  lowerCamelCase					:					Any        =	int((i / placement) % RADIX    )
                  buckets[tmp].append(UpperCamelCase__    )
            # put each buckets' contents into list_of_ints
            lowerCamelCase					:					Dict        =	0
            for b in range(UpperCamelCase__    ):
                  for i in buckets[b]:
                        lowerCamelCase					:					List[str]        =	i
                        a += 1
        # move to next
            placement *= RADIX
      return list_of_ints


if __name__ == "__main__":
    import doctest

    doctest.testmod()




