x^4 - x^3 - 15*x^2 - 18*x - 4 x^4 - x^3 + 7*x^2 + 43*x + 47 x^4 - 47*x^2 + 9 x^4 - x^3 - 548*x^2 - 1084*x + 27712 x^4 - x^3 + 537*x^2 + 1633*x + 6937 x^4 - x^3 + 272*x^2 + 11544*x + 100323 x^4 - x^3 + 272*x^2 + 7198*x + 139437