K542 :
a^9*c*x^2*y - a^8*b*c*x^2*y - 6*a^5*b^4*c*x^2*y + 6*a^4*b^5*c*x^2*y +   8*a^3*b^6*c*x^2*y - 8*a^2*b^7*c*x^2*y - 3*a*b^8*c*x^2*y +   3*b^9*c*x^2*y -   2*a^8*c^2*x^2*y + 7*a^7*b*c^2*x^2*y -   8*a^6*b^2*c^2*x^2*y + 5*a^5*b^3*c^2*x^2*y + 16*a^4*b^4*c^2*x^2*y -   31*a^3*b^5*c^2*x^2*y + 19*a*b^7*c^2*x^2*y - 6*b^8*c^2*x^2*y -   2*a^7*c^3*x^2*y - 5*a^6*b*c^3*x^2*y + 21*a^5*b^2*c^3*x^2*y -   30*a^4*b^3*c^3*x^2*y + 2*a^3*b^4*c^3*x^2*y +   37*a^2*b^5*c^3*x^2*y -   21*a*b^6*c^3*x^2*y - 2*b^7*c^3*x^2*y + 6*a^6*c^4*x^2*y -   14*a^5*b*c^4*x^2*y - 2*a^4*b^2*c^4*x^2*y + 38*a^3*b^3*c^4*x^2*y -   30*a^2*b^4*c^4*x^2*y - 8*a*b^5*c^4*x^2*y + 10*b^6*c^4*x^2*y +   14*a^4*b*c^5*x^2*y - 26*a^3*b^2*c^5*x^2*y - 4*a^2*b^3*c^5*x^2*y +   20*a*b^4*c^5*x^2*y - 4*b^5*c^5*x^2*y - 6*a^4*c^6*x^2*y +   7*a^3*b*c^6*x^2*y + 12*a^2*b^2*c^6*x^2*y - 11*a*b^3*c^6*x^2*y -   2*b^4*c^6*x^2*y + 2*a^3*c^7*x^2*y - 9*a^2*b*c^7*x^2*y +   5*a*b^2*c^7*x^2*y + 2*b^3*c^7*x^2*y + 2*a^2*c^8*x^2*y -   2*b^2*c^8*x^2*y -   a*c^9*x^2*y + b*c^9*x^2*y + 3*a^9*c*x*y^2 - 3*a^8*b*c*x*y^2 -   8*a^7*b^2*c*x*y^2 + 8*a^6*b^3*c*x*y^2 + 6*a^5*b^4*c*x*y^2 -   6*a^4*b^5*c*x*y^2 - a*b^8*c*x*y^2 + b^9*c*x*y^2 - 6*a^8*c^2*x*y^2 +   19*a^7*b*c^2*x*y^2 - 31*a^5*b^3*c^2*x*y^2 + 16*a^4*b^4*c^2*x*y^2 +   5*a^3*b^5*c^2*x*y^2 - 8*a^2*b^6*c^2*x*y^2 + 7*a*b^7*c^2*x*y^2 -   2*b^8*c^2*x*y^2 - 2*a^7*c^3*x*y^2 - 21*a^6*b*c^3*x*y^2 +   37*a^5*b^2*c^3*x*y^2 + 2*a^4*b^3*c^3*x*y^2 -   30*a^3*b^4*c^3*x*y^2 +   21*a^2*b^5*c^3*x*y^2 - 5*a*b^6*c^3*x*y^2 - 2*b^7*c^3*x*y^2 +   10*a^6*c^4*x*y^2 - 8*a^5*b*c^4*x*y^2 - 30*a^4*b^2*c^4*x*y^2 +   38*a^3*b^3*c^4*x*y^2 - 2*a^2*b^4*c^4*x*y^2 - 14*a*b^5*c^4*x*y^2 +   6*b^6*c^4*x*y^2 - 4*a^5*c^5*x*y^2 + 20*a^4*b*c^5*x*y^2 -   4*a^3*b^2*c^5*x*y^2 - 26*a^2*b^3*c^5*x*y^2 + 14*a*b^4*c^5*x*y^2 -   2*a^4*c^6*x*y^2 - 11*a^3*b*c^6*x*y^2 + 12*a^2*b^2*c^6*x*y^2 +   7*a*b^3*c^6*x*y^2 - 6*b^4*c^6*x*y^2 + 2*a^3*c^7*x*y^2 +   5*a^2*b*c^7*x*y^2 - 9*a*b^2*c^7*x*y^2 + 2*b^3*c^7*x*y^2 -   2*a^2*c^8*x*y^2 +   2*b^2*c^8*x*y^2 + a*c^9*x*y^2 - b*c^9*x*y^2 + a^9*b*x^2*z -   2*a^8*b^2*x^2*z - 2*a^7*b^3*x^2*z + 6*a^6*b^4*x^2*z -   6*a^4*b^6*x^2*z +   2*a^3*b^7*x^2*z + 2*a^2*b^8*x^2*z - a*b^9*x^2*z - a^8*b*c*x^2*z +   7*a^7*b^2*c*x^2*z - 5*a^6*b^3*c*x^2*z - 14*a^5*b^4*c*x^2*z +   14*a^4*b^5*c*x^2*z + 7*a^3*b^6*c*x^2*z - 9*a^2*b^7*c*x^2*z +   b^9*c*x^2*z -   8*a^6*b^2*c^2*x^2*z + 21*a^5*b^3*c^2*x^2*z -   2*a^4*b^4*c^2*x^2*z - 26*a^3*b^5*c^2*x^2*z +   12*a^2*b^6*c^2*x^2*z +   5*a*b^7*c^2*x^2*z - 2*b^8*c^2*x^2*z + 5*a^5*b^2*c^3*x^2*z -   30*a^4*b^3*c^3*x^2*z + 38*a^3*b^4*c^3*x^2*z - 4*a^2*b^5*c^3*x^2*z -   11*a*b^6*c^3*x^2*z + 2*b^7*c^3*x^2*z - 6*a^5*b*c^4*x^2*z +   16*a^4*b^2*c^4*x^2*z + 2*a^3*b^3*c^4*x^2*z - 30*a^2*b^4*c^4*x^2*z +   20*a*b^5*c^4*x^2*z - 2*b^6*c^4*x^2*z + 6*a^4*b*c^5*x^2*z -   31*a^3*b^2*c^5*x^2*z + 37*a^2*b^3*c^5*x^2*z - 8*a*b^4*c^5*x^2*z -   4*b^5*c^5*x^2*z + 8*a^3*b*c^6*x^2*z - 21*a*b^3*c^6*x^2*z +   10*b^4*c^6*x^2*z - 8*a^2*b*c^7*x^2*z + 19*a*b^2*c^7*x^2*z -   2*b^3*c^7*x^2*z - 3*a*b*c^8*x^2*z - 6*b^2*c^8*x^2*z +   3*b*c^9*x^2*z -   a^9*b*y^2*z + 2*a^8*b^2*y^2*z + 2*a^7*b^3*y^2*z - 6*a^6*b^4*y^2*z +   6*a^4*b^6*y^2*z - 2*a^3*b^7*y^2*z - 2*a^2*b^8*y^2*z +   a*b^9*y^2*z + a^9*c*y^2*z - 9*a^7*b^2*c*y^2*z +   7*a^6*b^3*c*y^2*z +   14*a^5*b^4*c*y^2*z - 14*a^4*b^5*c*y^2*z - 5*a^3*b^6*c*y^2*z +   7*a^2*b^7*c*y^2*z - a*b^8*c*y^2*z - 2*a^8*c^2*y^2*z +   5*a^7*b*c^2*y^2*z + 12*a^6*b^2*c^2*y^2*z - 26*a^5*b^3*c^2*y^2*z -   2*a^4*b^4*c^2*y^2*z + 21*a^3*b^5*c^2*y^2*z - 8*a^2*b^6*c^2*y^2*z +   2*a^7*c^3*y^2*z - 11*a^6*b*c^3*y^2*z - 4*a^5*b^2*c^3*y^2*z +   38*a^4*b^3*c^3*y^2*z - 30*a^3*b^4*c^3*y^2*z +   5*a^2*b^5*c^3*y^2*z -   2*a^6*c^4*y^2*z + 20*a^5*b*c^4*y^2*z - 30*a^4*b^2*c^4*y^2*z +   2*a^3*b^3*c^4*y^2*z + 16*a^2*b^4*c^4*y^2*z - 6*a*b^5*c^4*y^2*z -   4*a^5*c^5*y^2*z - 8*a^4*b*c^5*y^2*z + 37*a^3*b^2*c^5*y^2*z -   31*a^2*b^3*c^5*y^2*z + 6*a*b^4*c^5*y^2*z + 10*a^4*c^6*y^2*z -   21*a^3*b*c^6*y^2*z + 8*a*b^3*c^6*y^2*z - 2*a^3*c^7*y^2*z +   19*a^2*b*c^7*y^2*z - 8*a*b^2*c^7*y^2*z - 6*a^2*c^8*y^2*z -   3*a*b*c^8*y^2*z + 3*a*c^9*y^2*z + 3*a^9*b*x*z^2 - 6*a^8*b^2*x*z^2 -   2*a^7*b^3*x*z^2 + 10*a^6*b^4*x*z^2 - 4*a^5*b^5*x*z^2 -   2*a^4*b^6*x*z^2 + 2*a^3*b^7*x*z^2 - 2*a^2*b^8*x*z^2 +   a*b^9*x*z^2 -   3*a^8*b*c*x*z^2 + 19*a^7*b^2*c*x*z^2 - 21*a^6*b^3*c*x*z^2 -   8*a^5*b^4*c*x*z^2 + 20*a^4*b^5*c*x*z^2 - 11*a^3*b^6*c*x*z^2 +   5*a^2*b^7*c*x*z^2 - b^9*c*x*z^2 - 8*a^7*b*c^2*x*z^2 +   37*a^5*b^3*c^2*x*z^2 - 30*a^4*b^4*c^2*x*z^2 - 4*a^3*b^5*c^2*x*z^2 +   12*a^2*b^6*c^2*x*z^2 - 9*a*b^7*c^2*x*z^2 + 2*b^8*c^2*x*z^2 +   8*a^6*b*c^3*x*z^2 - 31*a^5*b^2*c^3*x*z^2 + 2*a^4*b^3*c^3*x*z^2 +   38*a^3*b^4*c^3*x*z^2 - 26*a^2*b^5*c^3*x*z^2 + 7*a*b^6*c^3*x*z^2 +   2*b^7*c^3*x*z^2 + 6*a^5*b*c^4*x*z^2 + 16*a^4*b^2*c^4*x*z^2 -   30*a^3*b^3*c^4*x*z^2 - 2*a^2*b^4*c^4*x*z^2 + 14*a*b^5*c^4*x*z^2 -   6*b^6*c^4*x*z^2 - 6*a^4*b*c^5*x*z^2 + 5*a^3*b^2*c^5*x*z^2 +   21*a^2*b^3*c^5*x*z^2 - 14*a*b^4*c^5*x*z^2 - 8*a^2*b^2*c^6*x*z^2 -   5*a*b^3*c^6*x*z^2 + 6*b^4*c^6*x*z^2 + 7*a*b^2*c^7*x*z^2 -   2*b^3*c^7*x*z^2 - a*b*c^8*x*z^2 - 2*b^2*c^8*x*z^2 + b*c^9*x*z^2 +   a^9*b*y*z^2 - 2*a^8*b^2*y*z^2 + 2*a^7*b^3*y*z^2 - 2*a^6*b^4*y*z^2 -   4*a^5*b^5*y*z^2 + 10*a^4*b^6*y*z^2 - 2*a^3*b^7*y*z^2 -   6*a^2*b^8*y*z^2 + 3*a*b^9*y*z^2 - a^9*c*y*z^2 + 5*a^7*b^2*c*y*z^2 -   11*a^6*b^3*c*y*z^2 + 20*a^5*b^4*c*y*z^2 - 8*a^4*b^5*c*y*z^2 -   21*a^3*b^6*c*y*z^2 + 19*a^2*b^7*c*y*z^2 - 3*a*b^8*c*y*z^2 +   2*a^8*c^2*y*z^2 - 9*a^7*b*c^2*y*z^2 + 12*a^6*b^2*c^2*y*z^2 -   4*a^5*b^3*c^2*y*z^2 - 30*a^4*b^4*c^2*y*z^2 + 37*a^3*b^5*c^2*y*z^2 -   8*a*b^7*c^2*y*z^2 + 2*a^7*c^3*y*z^2 + 7*a^6*b*c^3*y*z^2 -   26*a^5*b^2*c^3*y*z^2 + 38*a^4*b^3*c^3*y*z^2 + 2*a^3*b^4*c^3*y*z^2 -   31*a^2*b^5*c^3*y*z^2 + 8*a*b^6*c^3*y*z^2 - 6*a^6*c^4*y*z^2 +   14*a^5*b*c^4*y*z^2 - 2*a^4*b^2*c^4*y*z^2 - 30*a^3*b^3*c^4*y*z^2 +   16*a^2*b^4*c^4*y*z^2 + 6*a*b^5*c^4*y*z^2 - 14*a^4*b*c^5*y*z^2 +   21*a^3*b^2*c^5*y*z^2 + 5*a^2*b^3*c^5*y*z^2 - 6*a*b^4*c^5*y*z^2 +   6*a^4*c^6*y*z^2 - 5*a^3*b*c^6*y*z^2 - 8*a^2*b^2*c^6*y*z^2 -   2*a^3*c^7*y*z^2 + 7*a^2*b*c^7*y*z^2 - 2*a^2*c^8*y*z^2 -   a*b*c^8*y*z^2 +   a*c^9*y*z^2 = 0