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