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(x+y+z=3*x*y,x^2+y^2+z^2=3*x*z,x^3+y^3+z^3=3*y*z)
(x+y+z=3*x*y,x^2+y^2+z^2=3*x*z,x^3+y^3+z^3=3*y*z)
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