#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main(){
	cout<<fixed<<setprecision(5);
	double a,b,c;
	cin>>a>>b>>c;
	double x=b*b-4*a*c;
	if(x<0) cout<<"No answer!";
	else if(x==0){
		cout<<"x1=x2="<<-b/(2*a);
	}
	else{
		double x1=(-b+sqrt(x))/(2*a);
		double x2=(-b-sqrt(x))/(2*a);
		if(x1>x2) swap(x1,x2);
		cout<<"x1="<<x1<<";x2="<<x2;
	}
	return 0;
}