double f(double a, double b, double c) {
double r1106342 = a;
double r1106343 = b;
double r1106344 = r1106342 + r1106343;
double r1106345 = c;
double r1106346 = r1106344 + r1106345;
double r1106347 = 2.0;
double r1106348 = r1106346 / r1106347;
double r1106349 = r1106348 - r1106342;
double r1106350 = r1106348 * r1106349;
double r1106351 = r1106348 - r1106343;
double r1106352 = r1106350 * r1106351;
double r1106353 = r1106348 - r1106345;
double r1106354 = r1106352 * r1106353;
double r1106355 = sqrt(r1106354);
return r1106355;
}