Girlfriend Problem

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Harsha's girlfriend likes playing with Harsha. She gave him two numbers L and R. She wants him to find the sum of product of digits of all the numbers between L and R (including L and R). He wants to impress her as he can't stand being alone. So please help him find the answer. As the answer may be large, output the answer modulo $10^9+7$. ###Input: - First line will contain T ,the number of tes

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solution.cppC++17

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