Cashback

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A customer is buying a cake from Chef's store for $X$ rupees. Chef has a cashback policy, where for any purchase of at least $200$ rupees, he returns $50$ rupees as a discount. What is the effective amount the customer paid for the cake? ### Input - The first and only line contains a single integer $X$ - the price of the cake. ### Output Output the effective amount paid by the customer. ###

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solution.cppC++17

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