Count the ACs

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There are $10$ problems in a contest. You know that the score of each problem is either $1$ or $100$ points. Chef came to know the total score of a participant and he is wondering how many problems were actually solved by that participant. Given the total score $P$ of the participant, determine the number of problems solved by the participant. Print $-1$ in case the score is invalid. ### Input

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solution.cppC++17

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