In addition to the questions raised by StCirq, when are you planning this trip? Do you plan to fly "open-jaw" into Paris and then out of another city? What are you hoping to do/see? What are your interests?
An additional comment: IMO 1 day is not in anyway enough time to spend in Normandy.
If you really want to visit Monaco or the south of France, take the train from Paris and omit Normandy.
For this type of trip I do hope that you are flying open-jaws, into Paris and home from Nice.
I'd probably head to Normandy immediately upon arrival and spend 2 nights there. This will give you one full day in the area. Then take the train to Paris for 4 nights and head to Nice by TGV on day 7. It's doable, but a bit too rushed IMO.
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