#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  int a,b,c;
  cin>>a>>b>>c;
  if(4*a*c > b*b){
      cout<<"imaginary"<<endl;
  }
  else if(4*a*c == b*b){
      cout<<fixed<<setprecision(12);
      cout<<-b*0.5/a<<endl;
  }
  else{
      cout<<fixed<<setprecision(12);
      cout<<min(-b*0.5/a-sqrt(b*b-4*a*c)/(2*a),-b*0.5/a+sqrt(b*b-4*a*c)/(2*a))<<' '<<max(-b*0.5/a-sqrt(b*b-4*a*c)/(2*a),-b*0.5/a+sqrt(b*b-4*a*c)/2/a)<<endl;
  }
}