#include<bits/stdc++.h>
using namespace std;
int main(){
    double a,b,c,x1,x2;
	cin>>a>>b>>c;
	if(b*b-4*a*c<0){
		cout<<"No answer!"<<endl;
		return 0;}
	x1=(-b+sqrt(b*b-4*a*c))*1.0/(2*a);
	x2=(-b-sqrt(b*b-4*a*c))*1.0/(2*a);
	if(b*b==4*a*c) printf("x1=x2=%.5lf\n",x1);
	printf("x1=%.5lf;x2=%.5lf\n",min(x1,x2),max(x1,x2));
	return 0;
}