





"""simple docstring"""



from torch import nn







def 		__lowercase     (   snake_case_  :  str						)   ->str:



    '''simple docstring'''







    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}"""						)










from __future__ import annotations


def 						lowerCamelCase__    (		_A							):







	'''simple docstring'''





	snake_case_		    =     str(_A							)
	return len(_A							) == 9 and set(_A							) == set("123456789"							)


def 						lowerCamelCase__    (		):







	'''simple docstring'''





	for base_num in range(9999     ,	4999     ,	-1							):
		snake_case_		    =     100002 * base_num
		if is_9_pandigital(_A							):
			return candidate

	for base_num in range(333     ,	99     ,	-1							):
		snake_case_		    =     1002003 * base_num
		if is_9_pandigital(_A							):
			return candidate

	return None


if __name__ == "__main__":
		print(f'''{solution() = }''')
