Who is cole sprouse and who is dylan sprouse?

I m abit confused. Is zack cole sprouse and cody dylan sprouse? Or cody cole sprouse and zack dylan sprouse? And, cud u pls gimme some information abt them. I just kno them as zack and cody from the show...n whats thier age? R they 15? n were do they live?
Answers pls.
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