#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int main() {
	long double a, b, c;
	cin >> a >> b >> c;
	long double f = 4, z = 0, t = 2;
	if (b * b - f * a * c < z) {
		cout << "imaginary" << endl;
	}
	else {
		long double x = (-b + sqrtl(b * b - f * a * c)) / t * a;
		long double y = (-b - sqrtl(b * b - f * a * c)) / t * a;
		if (x == y) {
			cout << fixed << setprecision(16) << x << endl;
		}
		else {
			cout << fixed << setprecision(16) << x << " " << y << endl;
		}
	}
	return 0;
}