Lucky Four

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Karan likes the number 4 very much. Impressed by the power of this number, Karan has begun to look for occurrences of four anywhere. He has a list of T integers, for each of them he wants to calculate the number of occurrences of the digit 4 in the decimal representation. He is too busy now, so please help him. ### Input The first line of input consists of a single integer T, denoting the number

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solution.cppC++17

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