using System;

public class Program

{

    public static void Main()

    {

        SoccerTeam team = new SoccerTeam();

        team.MakeScream();

        ManchesterUnited mu = new ManchesterUnited();

        mu.MakeScream();

        RealMadrid rm = new RealMadrid();

        rm.MakeScream();

        SoccerTeam barca = new Barcelona();

        barca.MakeScream();

    }

}

​

​

public class SoccerTeam

{

    public virtual void Scream()    {Console.WriteLine("Team");}

    public void MakeScream()    {Console.WriteLine("Go-go");Scream();}

}

public class ManchesterUnited: SoccerTeam

{

    public override void Scream()

    {

        Console.WriteLine("Manchester!");

    }

}

public class RealMadrid: SoccerTeam

{

    public new void Scream()

    {

        Console.WriteLine("Real Madrid!");

    }

}

public class Barcelona: SoccerTeam

{

    public override void Scream()

    {

        Console.WriteLine("Barcelona!");

    }

}