#include<bits/stdc++.h> using namespace std; int main() {

double a,b,c;
cin>>a>>b>>c;
double m=b*b-4*a*c;
if(fabs(m)<0.00001)
cout<<"x1=x2="<<fixed<<setprecision(5)<<-b/(2*a);
else if(m>0)
	{
	double x_small=(-b-sqrt(m))/(2*a);
	double x_big=(-b+sqrt(m))/(2*a);
	if(x_small>x_big)
	{
		double temp=x_small;
		x_small=x_big;
		x_big=temp;
	}		
	cout<<fixed<<setprecision(5)<<"x1="<<x_small<<";x2="<<x_big;
}
else
	cout<<"No answer!";
return 0;

}