Wear Mask

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Wear mask and beware of corner case. See the sample test case to understand more. ###Input: - First line contains a single integer $N$. - Next line contains $N$ space separated integers $Ai$. ###Output: A single integer. ###Constraints - $1 \leq N \leq 1000$ - $1 \leq Ai \leq 1000$ ###Sample Input: 5 2 8 7 9 10 ###Sample Output: 31

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solution.cppC++17

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