double f(double a, double b, double c) {
double r1753078 = a;
double r1753079 = b;
double r1753080 = r1753078 + r1753079;
double r1753081 = c;
double r1753082 = r1753080 + r1753081;
double r1753083 = 2.0;
double r1753084 = r1753082 / r1753083;
double r1753085 = r1753084 - r1753078;
double r1753086 = r1753084 * r1753085;
double r1753087 = r1753084 - r1753079;
double r1753088 = r1753086 * r1753087;
double r1753089 = r1753084 - r1753081;
double r1753090 = r1753088 * r1753089;
double r1753091 = sqrt(r1753090);
return r1753091;
}