cleanF18 := (3-5*x-3*y+3*x^3*y^2+4*x^3-x^4*y+4*x^3*y+3*y^2-2*x^3*y^3-4*x^4-x^4
*y^2-2*y^3+3*x*y-2*x*y^2+5*x*y^3+x*y^4+5*x*y^5-x^2*y+4*x^2*y^2-3*x^2*y^3-3*x^2
*y^4-x^5*y+4*x^6-4*x^5+5*y^4+y^5-5*y^6+Complex(1)*(-5+x+3*y+x^3*y^2+x^3-5*x^4*
y+x^3*y-y^2+2*x^4+5*x^4*y^2+4*y^3-3*x*y+5*x*y^2-3*x*y^3-x*y^4-4*x*y^5+5*x^2*y-\
5*x^2*y^2+3*x^2*y^3-3*x^2*y^4+3*x^5*y+5*x^6+3*x^5-4*y^4-5*x^2+5*y^5+3*y^6))*(4
*x-5*y+4*x^3*y^2-3*x^3-3*x^4*y-3*x^3*y+3*y^2+2*x^3*y^3+5*x^4+3*x^4*y^2+y^3-4*x
*y^2+3*x*y^3+x*y^4+x*y^5-2*x^2*y-2*x^2*y^2-5*x^2*y^3-x^2*y^4+2*x^5*y+5*x^6-4*x
^5+4*y^4-4*x^2+2*y^5-y^6+Complex(1)*(-3-3*x-y+4*x^3*y^2+2*x^3+x^4*y+4*y^2-2*x^
3*y^3+x^4-4*x^4*y^2+y^3-x*y+3*x*y^3+2*x*y^4-3*x*y^5+5*x^2*y+3*x^2*y^2+x^2*y^3+
3*x^2*y^4-5*x^5*y+3*x^6+x^5+y^4-x^2+5*y^5+4*y^6));
noiseF18 := `*`(1/1000000,3+4*x+y+3*x^3*y^2-x^6*y^3+2*x^6*y+2*x^6*y^2+2*x^3-2*
x^5*y^4-x^5*y^2-5*x^4*y-3*x^9*y-2*x^8*y^3-4*x^7*y^2+3*x^5*y^5-4*x^5*y^7-5*x^6*
y^6+5*x^6*y^4+4*x^6*y^5-2*x^9*y^2+4*x^9*y^3-4*x^3*y+4*x^8*y^2-3*x^8*y+2*x^5*y^
3+3*x^7*y^5+2*x^7*y^3-5*x^7*y^4+4*x^3*y^3-5*y^11-x^4+2*x^4*y^2+2*x^8*y^4+2*x^
11*y-4*y^3+4*x*y-4*x*y^2-4*x*y^4-2*x*y^5-4*x^2*y+4*x^2*y^2+2*x^2*y^3+x^2*y^4-x
^10*y^2+2*x^10*y+x^5*y^6-2*x^6+5*x^5-y^4+2*x^2+5*y^6+4*x^12+2*x^11-3*x^10+4*x^
9-5*x^8+3*x^7+4*y^7+y^8-5*y^9-2*y^10-y^12-2*x^4*y^8+5*x^4*y^7+2*x^4*y^6+x^4*y^
5+2*x^4*y^4-4*x^4*y^3+2*x^3*y^9-2*x^3*y^8+5*x^3*y^7+4*x^3*y^6+x^3*y^5+5*x^3*y^
4+x^2*y^10+2*x^2*y^9+4*x^2*y^8+4*x^2*y^7+5*x*y^11-4*x*y^10+5*x*y^9+3*x*y^8-4*x
*y^7-2*x*y^6+Complex(1)*(3+2*x-3*y+x^3*y^2-4*x^6*y^3-2*x^6*y-4*x^6*y^2-4*x^3+3
*x^5*y^4-2*x^5*y^2-x^4*y-x^9*y+x^8*y^3-3*x^7*y^2+x^7*y-4*x^5*y^5+x^5*y^7+2*x^6
*y^6+4*x^6*y^4+3*x^6*y^5+3*x^9*y^3-4*x^3*y+2*x^8*y^2-3*x^8*y-2*y^2-4*x^5*y^3+4
*x^7*y^5+5*x^7*y^3-2*x^7*y^4+3*x^3*y^3+4*y^11-3*x^4+3*x^4*y^2-5*x^8*y^4+4*x^11
*y-y^3+x*y-5*x*y^2+x*y^3+x*y^4+x*y^5-3*x^2*y+2*x^2*y^2+2*x^2*y^3-x^2*y^4-4*x^5
*y-x^10*y^2+x^10*y-x^5*y^6+2*x^6-2*x^5-y^4+2*x^2+5*y^5-2*y^6-3*x^12-x^11-2*x^
10-5*x^9-5*x^8-2*y^7-5*y^8-4*y^9-5*y^10+2*y^12-5*x^4*y^8-2*x^4*y^7+5*x^4*y^6-5
*x^4*y^5+3*x^4*y^4-3*x^4*y^3-2*x^3*y^9+4*x^3*y^8-5*x^3*y^7-3*x^3*y^6+5*x^3*y^5
+5*x^3*y^4-3*x^2*y^10+3*x^2*y^9-2*x^2*y^7+4*x^2*y^6-2*x^2*y^5-2*x*y^11+2*x*y^
10+3*x*y^9+2*x*y^8+5*x*y^7+3*x*y^6));