Red and Blue Gems

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There are $R$ red gems and $B$ blue gems. Each red gem can be sold for $P$ coins, while a blue gem can be sold for $Q$ coins. It is not allowed to take gems of both colours. You may either take all of the red gems, or take all of the blue gems. Find the maximum number of coins you can obtain by taking some of the gems and then selling them. ### Input - The first and only line of input contains

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solution.cppC++17

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