#include<iostream>
#include<cmath>
#include<iomanip>
using namespace std;
int main()
{    
    double a,b,c,d,x1,x2;
    cin>>a>>b>>c;
    d=b*b-4*a*c;
    if(d>0.000001){
    	x1=(-b+sqrt(d))/(2*a);
		x2=(-b-sqrt(d))/(2*a);
		if(a<0){
		cout<<"x1=";printf("%0.5lf",x1);cout<<";"<<"x2=";printf("%0.5lf",x2);}
		else{
			cout<<"x1=";printf("%0.5lf",x2);cout<<";"<<"x2=";printf("%0.5lf",x1);
		}
	}
	if(d >= -0.000001 && d <= 0.000001){
    	x1=x2=(-b)/(2*a);
    	cout<<"x1=x2=";printf("%0.5lf",x1);
	}
		if(d < -0.000001){
    	cout<<"No answer!";
	}
    return 0;
}