if you can figure this out, u get 10 free points.
You and I each have one lock and a corresponding key. I want to mail you a box with a ring in it, but any box that is not locked will be emptied before it reaches the recipient. How can I safely send you the ring?
(note that you and I each have keys to our OWN lock but Not to the other lock)
you must explain your answer for the points.
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