using System;

public class Test
{
class A
{
    public void print() 
    {
        Console.WriteLine("Class A");
    }
}

class B : A 
{
    public void print()
    {
        Console.WriteLine("Class B");
    }
}

    static void Main(string[] args)
    {
        B b = new B();
        b.print();
        ((A)b).print();
    }
}