using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Vuvedi a");

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

        Console.WriteLine("Vuvedi b");

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

        Console.WriteLine("vuvedi c");

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

        double D = Math.Pow(b, 2) - 4.00 * a * c;

        if (D < 1)

            Console.WriteLine("nqma reshenie");

        else

            Console.WriteLine("Diskriminantata e " + D);

            double x1 = (-b + Math.Sqrt(D)) / (2.00 * a);

            double x2 = (-b - Math.Sqrt(D)) / (2.00 * a);

    }       

}