double f(double a, double b, double c) {
double r4862924 = a;
double r4862925 = b;
double r4862926 = r4862924 + r4862925;
double r4862927 = c;
double r4862928 = r4862926 + r4862927;
double r4862929 = 2.0;
double r4862930 = r4862928 / r4862929;
double r4862931 = r4862930 - r4862924;
double r4862932 = r4862930 * r4862931;
double r4862933 = r4862930 - r4862925;
double r4862934 = r4862932 * r4862933;
double r4862935 = r4862930 - r4862927;
double r4862936 = r4862934 * r4862935;
double r4862937 = sqrt(r4862936);
return r4862937;
}