gmail - can't figure out how to change users

I have three separate gmail accounts.  There used to be a button at the upper right that allowed me to sign out, then login on another account. I can't find it.
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Paul JacksonConnect With a Mentor Software EngineerCommented:
The last button in the top right which is either a photo of you if you have uploaded one or a empty avatar is the one to use, left click on it and you get the option to sign out.
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