Which of the following is/are not equivalent regular expressions?

1
(10 + 01)* and (01)* + (11)*
2
((01)*(10)*)* and (10 + 01)*
3
(01)* + (11)* and (0* + (11)* + 0*)*)
4
((01)*(10)*)* and (0* + (11)* + 0*)*)

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