using System;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;

 // Compiler version 4.0, .NET Framework 4.5

​

​

 namespace Dcoder

 {

   public class Equation

   {

     public int D;

     public int a = 2;

     public int b = -11;

     public int c = -22;

     public double r;

     public double Delta()

     {

       return this.D = this.b * this.b - 4 * this.a * this.c;

     }

     public void Root() 

     {

          this.r = Math.Sqrt(  );  

      }

      public double math()

     {

​

       return X1 = ( - this.b + this.r )/( 2 * this.a );

​

              X2 = ( - this.b - this.r )/( 2 * this.a );

     }

     public static void Main(string[] args)

     {

       Equation E = new Equation();

       E.Delta();

       if (  < 0 )

       {

        Console.WriteLine("This equation is impossible to solve");

       }

         else if (  > 0 )

       {

          Equation X1 = new Equation();         

          Equation X2 = new Equation();

          X1.math();

          X1.Root();

          X2.math();

          X2.Root();

          Console.WriteLine();

          Console.WriteLine();

       }

           else 

       {

            Console.WriteLine("Stage3");

       }

     }

   }

 }

​