double f(double a, double b, double c) {
double r14636944 = a;
double r14636945 = b;
double r14636946 = r14636944 + r14636945;
double r14636947 = c;
double r14636948 = r14636946 + r14636947;
double r14636949 = 2.0;
double r14636950 = r14636948 / r14636949;
double r14636951 = r14636950 - r14636944;
double r14636952 = r14636950 * r14636951;
double r14636953 = r14636950 - r14636945;
double r14636954 = r14636952 * r14636953;
double r14636955 = r14636950 - r14636947;
double r14636956 = r14636954 * r14636955;
double r14636957 = sqrt(r14636956);
return r14636957;
}