double f(double a, double b, double c) {
double r1743632 = a;
double r1743633 = b;
double r1743634 = r1743632 + r1743633;
double r1743635 = c;
double r1743636 = r1743634 + r1743635;
double r1743637 = 2.0;
double r1743638 = r1743636 / r1743637;
double r1743639 = r1743638 - r1743632;
double r1743640 = r1743638 * r1743639;
double r1743641 = r1743638 - r1743633;
double r1743642 = r1743640 * r1743641;
double r1743643 = r1743638 - r1743635;
double r1743644 = r1743642 * r1743643;
double r1743645 = sqrt(r1743644);
return r1743645;
}