double f(double a, double b, double c) {
double r16341385 = a;
double r16341386 = b;
double r16341387 = r16341385 + r16341386;
double r16341388 = c;
double r16341389 = r16341387 + r16341388;
double r16341390 = 2.0;
double r16341391 = r16341389 / r16341390;
double r16341392 = r16341391 - r16341385;
double r16341393 = r16341391 * r16341392;
double r16341394 = r16341391 - r16341386;
double r16341395 = r16341393 * r16341394;
double r16341396 = r16341391 - r16341388;
double r16341397 = r16341395 * r16341396;
double r16341398 = sqrt(r16341397);
return r16341398;
}