#include<bits/stdc++.h>
#include<cmath>
#include<iomanip>

using namespace std;

int main(){
double a,b,c;
double x1,x2;
cin>>a>>b>>c;
x1=( -b-sqrt(b*b-4*a*c) )/(2*a);
x2=( -b+sqrt(b*b-4*a*c) )/(2*a);
if(b*b-4*a*c>0){
cout<<fixed<<setprecision(5)<<"x1="<<x1<<";"<<"x2="<<x2;
}
else if(b*b-4*a*c==0){
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1;
}
else{
cout<<"No answer!";
}
return 0;
}