using System;

public class Program

{

    public static void Main()

    {

        int a,b,c;

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

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

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

        double bs = Math.Pow(b,2);

        double x = Math.Sqrt(bs - 4 * a * c);

        double x1 = (-b +x)/(2*a);

        double x2 = (-b-x)/(2+a);

        Console.WriteLine("x1 = {0}",x1);

        if (x2==x1)

        {

           Console.WriteLine("There is only one x");

        }

        if (x2!=x1)

        {

        Console.WriteLine("x2 = {0}",x2);

        }

    }

}

​