using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("a = ");

        double a = double.Parse(Console.ReadLine());

        Console.Write("b= ");

        double b = double.Parse(Console.ReadLine());

        Console.Write("c = ");

        double c = double.Parse(Console.ReadLine());

        if (a==0) if (b==0) if (c==) Console.WriteLine("Vsqko x e reshenie");

        else Console.WriteLine("Nqma reshenie");

        else Console.WriteLine("x = {0:f2}", -a/b);

        else

        {

            double d=b*b-4*a*c;

            if (d<0) Console.WriteLine("Nqma realni koreni");

            else Console.WriteLine("x1 = {0:f2}, x2 = {1:f2}", (-bMath.Sqrt(d))/(2*a),(-bMath.Sqrt(d))/(2*a));

    }

}