double f(double a, double b, double c) {
double r1033201 = a;
double r1033202 = b;
double r1033203 = r1033201 + r1033202;
double r1033204 = c;
double r1033205 = r1033203 + r1033204;
double r1033206 = 2.0;
double r1033207 = r1033205 / r1033206;
double r1033208 = r1033207 - r1033201;
double r1033209 = r1033207 * r1033208;
double r1033210 = r1033207 - r1033202;
double r1033211 = r1033209 * r1033210;
double r1033212 = r1033207 - r1033204;
double r1033213 = r1033211 * r1033212;
double r1033214 = sqrt(r1033213);
return r1033214;
}