double f(double a, double b, double c) {
double r4473745 = a;
double r4473746 = b;
double r4473747 = r4473745 + r4473746;
double r4473748 = c;
double r4473749 = r4473747 + r4473748;
double r4473750 = 2.0;
double r4473751 = r4473749 / r4473750;
double r4473752 = r4473751 - r4473745;
double r4473753 = r4473751 * r4473752;
double r4473754 = r4473751 - r4473746;
double r4473755 = r4473753 * r4473754;
double r4473756 = r4473751 - r4473748;
double r4473757 = r4473755 * r4473756;
double r4473758 = sqrt(r4473757);
return r4473758;
}