using System;

​

class Parent

{

  public void Method(int x)

  {

    Console.WriteLine("Parent's version of Method");

  }   

}

class Child : Parent

{

  public void Method(double y)

  {

    Console.WriteLine("Child's version of Method");

  }

}

​

public class Program

{

  public static void Main()

  {

    Child c = new Child();

    c.Method(10);

  }

}