Question: 2. (Weird clock) You have a weird clock. It only has an hour hand. Every second this hand goes clockwise or counterclockwise with equal probability.

2. (Weird clock) You have a weird clock. It only has an hour hand. Every second this hand goes clockwise or counterclockwise with equal probability. Starting at noon, how many seconds do you expect it to take for the clock's hand to visit all twelve hours at least once

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