double f(double a, double b, double c) {
double r5593400 = a;
double r5593401 = b;
double r5593402 = r5593400 + r5593401;
double r5593403 = c;
double r5593404 = r5593402 + r5593403;
double r5593405 = 2.0;
double r5593406 = r5593404 / r5593405;
double r5593407 = r5593406 - r5593400;
double r5593408 = r5593406 * r5593407;
double r5593409 = r5593406 - r5593401;
double r5593410 = r5593408 * r5593409;
double r5593411 = r5593406 - r5593403;
double r5593412 = r5593410 * r5593411;
double r5593413 = sqrt(r5593412);
return r5593413;
}