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

#define fi first
#define se second
#define all(x) x.begin(), x.end()
#define lch (o << 1)
#define rch (o << 1 | 1)

typedef double db;
typedef long long ll;
typedef unsigned int ui;
typedef pair<int, int> pint;
typedef tuple<int, int, int> tint;

const double EPS = 1e-6;
const int INF = 0x3f3f3f3f;
const ll INF_LL = 0x3f3f3f3f3f3f3f3f;

int main() {
	ios::sync_with_stdio(0);

	double a, b, c;
	cin >> a >> b >> c;
	double det = b * b - 4 * a * c;
	if (det < -EPS) {
		cout << "imaginary" << endl;
	} else if (abs(det) <= EPS) {
		cout << fixed << setprecision(10) << -b / 2 / a << endl;
	} else {
		double x1 = (-b + sqrt(det)) / 2 / a;
		double x2 = (-b - sqrt(det)) / 2 / a;
		if (x1 > x2) swap(x1, x2);
		cout << fixed << setprecision(10) << x1 << ' ' << x2 << endl;
	}

	return 0;
}