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