Challenge overview
Hello and welcome to the challenge!
You have two elevators, A and B. Write a function which determines which of them is closest to the called floor. The function should receive three arguments: a_position, b_position and called_floor - they are all integer numbers of floors, which are numbered form 0 to 2. The function should return the name of the closest elevator - "A" or "B". In the case when both distances are equal, return the name of the elevator A.
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Have fun and good luck! :)