x^4 - x^3 + 4*x^2 - 20*x + 23 x^4 - x^3 + 5*x^2 - 7*x + 49 x^4 - 33*x^2 + 4 x^4 - x^3 - 15*x^2 + 4*x + 45 x^4 - x^3 + 265*x^2 - 803*x + 3155 x^4 - x^3 + 264*x^2 - 266*x + 18179 x^4 - x^3 - 402*x^2 + 1140*x + 3416 x^4 - x^3 - 402*x^2 - 2079*x + 197