double f(double a, double b, double c) {
double r3214334 = a;
double r3214335 = b;
double r3214336 = r3214334 + r3214335;
double r3214337 = c;
double r3214338 = r3214336 + r3214337;
double r3214339 = 2.0;
double r3214340 = r3214338 / r3214339;
double r3214341 = r3214340 - r3214334;
double r3214342 = r3214340 * r3214341;
double r3214343 = r3214340 - r3214335;
double r3214344 = r3214342 * r3214343;
double r3214345 = r3214340 - r3214337;
double r3214346 = r3214344 * r3214345;
double r3214347 = sqrt(r3214346);
return r3214347;
}