Question 1210252
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This problem, in depth of thought of its creator, reminds me an old children's joke:


There's something green hanging on the fence and squeaking. What is it?
- It's a herring.


And why is it hanging on the fence?
- Uh, they hung it there.


And why is it squeaking?
- So that no one would guess.


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The problem in the post is at the same level of pedagogy.


God save us from such problem creators.