#include <iostream>
#include <cmath>
#include <algorithm>

using namespace std;

int main() {
    double a, b, c;
    cin >> a >> b >> c;

    if (a == 0 && b != 0) {
        if (c != 0) {
            auto x = (-c) / b;
            cout << x;
        }
        else
            cout << 0;
    }
    else if (a != 0 && b == 0) {
        if (c < 0) {
            auto x = sqrt((-c) / a);
            cout << -x << " " << x;
        }
        else if (c = 0)
            cout << 0;
        else
            cout << "";
    }
    else if (a == 0 && b == 0) {
        cout << "";
    }
    else {
        auto D = b * b - 4 * a * c;

        if (D > 0) {
            auto first_x = (-b - sqrt(D)) / (2 * a);
            auto second_x = (-b + sqrt(D)) / (2 * a);
            cout << first_x << " " << second_x;
        }
        else if (D == 0) {
            auto x = -b / (2 * a);
            cout << x;
        }
        else
            cout << "";
    }

    system("pause");
    return 0;
}