double f(double a, double b, double c) {
double r1751049 = a;
double r1751050 = b;
double r1751051 = r1751049 + r1751050;
double r1751052 = c;
double r1751053 = r1751051 + r1751052;
double r1751054 = 2.0;
double r1751055 = r1751053 / r1751054;
double r1751056 = r1751055 - r1751049;
double r1751057 = r1751055 * r1751056;
double r1751058 = r1751055 - r1751050;
double r1751059 = r1751057 * r1751058;
double r1751060 = r1751055 - r1751052;
double r1751061 = r1751059 * r1751060;
double r1751062 = sqrt(r1751061);
return r1751062;
}