#include<bits/stdc++.h>
using namespace std;
int main()
{
	double a,b,c,x1/*根1*/,x2/*根2*/,n;
	cin>>a>>b>>c;
	n = b*b-4*a*c;
	if (n>=0)//有解
	{
		x1 = (-b+sqrt(n))/(2*a);//根1
		x2 = (-b-sqrt(n))/(2*a);//根2
		if (n==0) cout<<fixed<<setprecision(5)<<"x1=x2="<<x1;//根相等
		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!";//无解
	return 0;
}