#830. [Ctsc2013]因式分解
[Ctsc2013]因式分解
Description

Format
Input!
Output

Samples
8x^7-258x^5+2112x^3-512x
8(x-4)^2(x-1/2)x(x+1/2)(x+4)^2
Limitation



8x^7-258x^5+2112x^3-512x
8(x-4)^2(x-1/2)x(x+1/2)(x+4)^2

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