#include <iostream>
#include <cmath>
using namespace std;
const double EPS = 1e-9;
bool chez(double a){
    if(abs(a) < EPS) return true;
    return false;
}
int main(){
    int a, b, c;
    cin >> a >> b >> c;
    if(b * b - 4 * a * c < 0){
        cout << "imaginary" << endl;
        return 0;
    }
    else if(b * b == 4 * a * c){
        double d = a, e = b;
        if(chez(e)){
            cout << 0 << endl;
            return 0;
        }
        printf("%.10lf\n", -e / (2 * d));
    }
    else{
        double d = a, e = b, f = c;
        if(chez(f)){
            double l1 = min((double)0, -e / d), l2 = max((double)0, -e / d);   
            printf("%.10lf %.10lf\n", l1, l2);
            return 0;
        }
        double t = sqrt(e * e - 4 * d * f);
        double ans1 = (-e - t) /(2 * d), ans2 = (-e + t) / (2 * d);
        printf("%.10lf %.10lf\n", min(ans1, ans2), max(ans1, ans2));
    }
}