Changing my mind after I declined a job offer?

I declined a job offer on Wednesday this week. It’s Friday already.

I sent the HR an email saying that I had to decline back then. I said that it’s kinda far for me when they asked me to respond if I accept or not via phone.

How can I go back and accept the job offer that I declined?

Not saying that I should go back in time lol and should have accepted it lol.

But is it possible or any ways that I can take it back? Should I call or email? What should I say?

Thank you for the advice :)

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