x^4 - x^3 - 15*x^2 + 13*x - 3 x^4 - x^3 - 13*x^2 + 20*x - 28 x^4 - 2*x^3 + 23*x^2 - 22*x + 293 x^4 - x^3 + 24*x^2 - 159*x + 1099 x^4 + 75*x^2 + 256 x^4 + 43*x^2 - 688 x^4 - x^3 - 13*x^2 - 2869*x - 13831