1ring R = 0, (x1, x2), lp; 2int noVars = 0; 3poly p = 4 -x1*x2^2 5 +x1*x2^5 6 +0*x2^9 7 +0*x2^7 8 -x2^3 9 +x2^4 10 +x2^6 11 +0*x1*x2^8 12 -x2; 13