double f(double a, double b, double c) {
double r35999014 = a;
double r35999015 = b;
double r35999016 = r35999014 + r35999015;
double r35999017 = c;
double r35999018 = r35999016 + r35999017;
double r35999019 = 2.0;
double r35999020 = r35999018 / r35999019;
double r35999021 = r35999020 - r35999014;
double r35999022 = r35999020 * r35999021;
double r35999023 = r35999020 - r35999015;
double r35999024 = r35999022 * r35999023;
double r35999025 = r35999020 - r35999017;
double r35999026 = r35999024 * r35999025;
double r35999027 = sqrt(r35999026);
return r35999027;
}