double f(double a, double b, double c) {
double r2732186 = a;
double r2732187 = b;
double r2732188 = r2732186 + r2732187;
double r2732189 = c;
double r2732190 = r2732188 + r2732189;
double r2732191 = 2.0;
double r2732192 = r2732190 / r2732191;
double r2732193 = r2732192 - r2732186;
double r2732194 = r2732192 * r2732193;
double r2732195 = r2732192 - r2732187;
double r2732196 = r2732194 * r2732195;
double r2732197 = r2732192 - r2732189;
double r2732198 = r2732196 * r2732197;
double r2732199 = sqrt(r2732198);
return r2732199;
}