using System;

public class Person

{

    public string Name;

    public int Age;

    public bool HasPet;

    public void Greeting()

    {

        Console.WriteLine("Hi! My name is " + Name + " and my age is " + Age);

    }

    class Program

    {

        static void Main(string[] args)

        {

            Person person = new Person();

            person.Name = "John";

            person.Age = 27;

            person.HasPet = true;

            person.Greeting();

        }

    }

}