double f(double a, double b, double c) {
double r3369377 = a;
double r3369378 = b;
double r3369379 = r3369377 + r3369378;
double r3369380 = c;
double r3369381 = r3369379 + r3369380;
double r3369382 = 2.0;
double r3369383 = r3369381 / r3369382;
double r3369384 = r3369383 - r3369377;
double r3369385 = r3369383 * r3369384;
double r3369386 = r3369383 - r3369378;
double r3369387 = r3369385 * r3369386;
double r3369388 = r3369383 - r3369380;
double r3369389 = r3369387 * r3369388;
double r3369390 = sqrt(r3369389);
return r3369390;
}