Riddle me this
There's a woman, and every day when she goes to work, she gets in the elevator, goes up to the 12th floor, gets off, and proceeds to walk up the stairs to the 24th floor.
At the end of every day, she gets on the elevator, and goes all the way o the first floor, and goes home.
Why does she stop on the 12th floor every morning and walk the stairs?
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