How do i take all info of my iPhone 5s?

Hi so I'm thinking about selling my iPhone 5s to someone but i need to take all my information off such as iCloud information? I don't want who ever gets my phone to be able to see everything so how can i get it all of? If anyone knows please leave step by step how to do it.

Fbhurb

Settings > General > Reset > Erase All Contents & Settings.

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