#include <bits/stdc++.h>
using namespace std;

const int BUFFER_SIZE = 100;

int main()
{
    double a, b, c,d;
    double x1, x2;

    cin>>a>>b>>c;
  
        d = b * b - 4 * a * c;
        if(d >=0){                              /* 判別式が正のとき、解を計算 */
          x1 = (fabs(b) + sqrt(d)) / (2.0 * a);  /* 修正箇所 */
          if ( b >= 0.0 ) {
            x1 = -x1;
          }
          x2 = c / (a * x1);
          if(d==0) cout<<fixed<<setprecision(10)<<x1<<endl;
          else cout<<fixed<<setprecision(10)<<min(x1,x2)<<" "<<max(x1,x2)<<endl;
        }
        else{                                    /* 判別式が負のとき虚数解と表示 */
        cout<<"imaginary"<<endl;
        }

    return 0;
}