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

// コンテスト中のみ
//#define int long long

#define ll long long
#define rep(i,n) for(int i = 0; i < (n); i++)
#define P pair<ll,ll>
#define ld long double
ll INF = (1LL << 60);
int MOD = 1000000007;



signed main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cout << fixed << setprecision(15);
	ll a, b, c; cin >> a >> b >> c;
	if (b * b - 4 * a * c < 0) {
		cout << "imaginary" << endl;
	}
	else if (b*b - 4 * a*c == 0) {
		ld ansa = (-b + sqrt(b * b - 4 * a * c)) / 2 * a;
		cout << ansa << endl;
	}
	else {
		ld ansa = (-b + sqrt(b * b - 4 * a * c)) / (2 * a);
		ld ansb = (-b - sqrt(b * b - 4 * a * c)) / (2 * a);
		if (ansa > ansb)swap(ansa, ansb);
		cout << ansa << " " << ansb << endl;
	}
	return 0;
}