r^6 - r^5*s^7 + 11*r^5*s^6 - 48*r^5*s^5 + 105*r^5*s^4 - 121*r^5*s^3 + 69*r^5*s^2 - 20*r^5*s - r^5 - 2*r^4*s^7 + 12*r^4*s^6 - 9*r^4*s^5 - 60*r^4*s^4 + 144*r^4*s^3 - 105*r^4*s^2 + 35*r^4*s - 3*r^3*s^7 + 3*r^3*s^6 + 21*r^3*s^5 - 30*r^3*s^4 - 41*r^3*s^3 + 51*r^3*s^2 - 21*r^3*s + r^2*s^9 - 6*r^2*s^8 + 21*r^2*s^7 - 50*r^2*s^6 + 66*r^2*s^5 - 31*r^2*s^4 + 25*r^2*s^3 - 18*r^2*s^2 + 7*r^2*s + 3*r*s^6 - 15*r*s^5 + 10*r*s^4 - 6*r*s^3 + 3*r*s^2 - r*s + s^6