How do I post same job different dates on resume

I am wondering how I should post a job on my resume that I went back to. 

Should I format it like this: 

Company A Manager (2018-2019)

Company B (2016 - 2017)

Company A Manager/Front of house (2003 - 2016)

or like this: 

Company A Manager/Front of house (2003/2016 - 2018/2019)

Company B (2016-2017)

I added certain job titles to show that my position changed just in case that makes a difference. I was a manager before I left and came back and was a manager again.

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