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