Sum it

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Bob received an assignment from his school: he has two numbers $A$ and $B$, and he has to find the sum of these two numbers. Alice, being a good friend of Bob, told him that the answer to this question is $C$. Bob doesn't completely trust Alice and asked you to tell him if the answer given by Alice is correct or not. If the answer is correct print `"YES"`, otherwise print `"NO"` (without

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solution.cppC++17

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