Description: 1 1, 2, 3, 4 digital, can form number different from each other and not repeat digital three-digit? Are how many? 2 an integer, which together with the 100 is a perfect square, plus 168 is a perfect square number The number is how much? Enter three integers x, y, z, the output of these three numbers from small to big.* Output letter C pattern. Output 9* 9 formulas.
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