using System;

public class Program

{

  public class Person

  {

    private string name;

    private int age;

​

    public Person(string name, int age)

    {

      this.name = name;

      this.age = age;

    }

​

    public void SayHello()

    {

      Console.WriteLine("Hello");

    }

  }

​

  public static void Main()

  {

    // Create a new Person object named Bob

    Person Bob = new Person("Bob", 35);

​

    // Invoke Bob's SayHello() method

    // Say hello, Bob. "Hello" he'll say.

    Bob.SayHello();

  }

}