-x^12+8*x^8*y^2+2*x^6*y^6+2*x^6+32*x^4*y^4+8*x^2*y^8+8*x^2*y^2+y^12+2*y^6+1
x^12+8*x^8*y^2+2*x^6*y^6+2*x^6-32*x^4*y^4+8*x^2*y^8+8*x^2*y^2+y^12+2*y^6+1
x^12+8*x^8*y^2+2*x^6*y^6+2*x^6+32*x^4*y^4+8*x^2*y^8+8*x^2*y^2-y^12+2*y^6+1
x^12+8*x^8*y^2+2*x^6*y^6+2*x^6+32*x^4*y^4+8*x^2*y^8+8*x^2*y^2+y^12+2*y^6-1
