#include <iostream>
#include <cmath>
using namespace std;

void RealRootsQadrEqua(double a, double b, double c)
{
	double D = pow(b, 2) - 4 * a * c;
	double x1=0;
	double x2=0;
	if (D < 0)
	{
	     cout << "No real roots";

	}
	else if (D = 0)
	{
		x1 = -b / (2.0 * a);
		cout << x1;
	}
	else
	{
		x1 = (-b + sqrt(D)) / 2 * a;
		x2 = (-b - sqrt(D)) / 2 * a;
		cout << x1 << x2;

	}
}

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


	//double x1;
	//double x2;
	//double D = pow(b, 2) - 4 * a * c;
	//x1 = (-b + sqrt(D)) / 2 * a;
	//x2 = (-b - sqrt(D)) / 2 * a;
	//cout << x1 << x2;
}