Christmas Profit

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Nicholas owns a shop that sells seasonal decor items. The shop is in a posh locality so he has to pay a rent of $X$ coins. This year, Nicholas bought $N$ Christmas trees each for $A[i]$ coins and was able to sell them for $B[i]$ coins each. Print the $Net Profit$ of Nicholas. The $Net Profit$ is given by the $Total Revenue - Total Expenses$. ### Input - The first line will contain $T$, the n

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solution.cppC++17

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