CONFIG

tracktype: 1;
mptype: 2;
securitymaxnorm: 1e10;
sharpendigits: 20;

END;
INPUT

constant R, r;
R = 2;
r = 0.5;

variable_group x, y, z;

function f1;
f1 = (x^2+y^2+z^2+R^2 - r^2)^2 - 4*R^2*(x^2+y^2);

END;


x^4 + 2*x^2*y^2 + 2*x^2*z^2 - h^2*(17*x^2)/2 + y^4 + 2*y^2*z^2 - h^2*(17*y^2)/2 + z^4 + h^2*(15*z^2)/2 + h^4*225/16
