






"""simple docstring"""
from torch import nn

def 				snake_case      (   A__						):
			if act_fn in ["swish", "silu"]:
						return nn.SiLU()
			elif act_fn == "mish":
						return nn.Mish()
			elif act_fn == "gelu":
						return nn.GELU()
			else:
						raise ValueError(F"""Unsupported activation function: {act_fn}"""						)











"""simple docstring"""
import os

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

						UpperCAmelCase_     : Any			     =					0

						# right
						for i in range(20						):
									for j in range(17						):
												UpperCAmelCase_     : Union[str, Any]			     =					l[i][j] * l[i][j + 1] * l[i][j + 2] * l[i][j + 3]
												if temp > maximum:
															UpperCAmelCase_     : Any			     =					temp

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

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

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


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



