using System;

public class Program

{

    class A

{

        protected string ime= "a";

    public virtual int method() {return 1; }

        public virtual string Name

        { get {return this.ime;} 

         set {this.ime=value;} }

}

class B:A

{

public override int method() {return base.method() + 2;}

    public override string Name

        { get {return this.ime + "b";} 

         set {this.ime=value;} }

}

class C:B 

{

public override int method() {return base.method() + 3;}

    public override string Name

        { get {return this.ime +"c";} 

         set {this.ime=value;} }

}

    public static void Main()

    {

        A[] klasove = new A[] {new A(), new B(), new C()};

        for(int i=0; klasove.Length>i; i++)

        {

        Console.WriteLine(klasove[i].method());

        }

    }

}