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Good exercise for your brain.
Solve it on your own.
It is of the "2 x 2 = 4" level of problem.
There is no need to post it to the forum.
2 x 2 = 4.
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What I want to say is THIS:
The problems of this kind are the food for your brain.
If I solve it, it will be the same as if I consume the food intended for your brain.
I think it would be not good from my side.