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when toggle format what by license comment
Dec 9, 2016 at 2:42 vote accept T. Amdeberhan
Dec 7, 2016 at 2:38 comment added T. Amdeberhan Nice. Up-voted.
Dec 6, 2016 at 22:38 history edited Fedor Petrov CC BY-SA 3.0
added 66 characters in body
Dec 6, 2016 at 22:13 history answered Fedor Petrov CC BY-SA 3.0