#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

int main() {
    double a, b, c;
    cin >>a>>b>>c;
    double delta = b*b-4*a*c;
    if (delta >= 0) {
        double x_1 = (-b+sqrt(delta))/(2*a);
        double x_2 = (-b-sqrt(delta))/(2*a);
        if (delta == 0) {
            cout<<fixed<<setprecision(5)<<"x1=x2="<<x_1;
        }else{
            if (x_1 < x_2){
                cout<<fixed<<setprecision(5)<<"x1="<<x_1<<";x2="<< x_2;
            }else{
                cout<<fixed<<setprecision(5)<<"x1="<< x_2<<";x2="<< x_1;
            }
        }
    }else{
        cout << "No answer!";
    }
    return 0;
}