internal class Program
{
	static void Main(string[] args)
	{
		Person prs = new Person();
		prs.setpersonid(100);
		prs.setfirstname("mehdi");
		Console.WriteLine(prs.getpersonid()+"\t"+prs.getfirstname());
		Console.ReadKey();
	}

}

class Person
{
	public int personId;
	string firstName;
	string lastName;
	int age;

	public void printpersoninfo()
	{
		Console.WriteLine("id:{0}\nfirstname:{1}\nlastname:{2}age:{3}", personId, firstName, lastName, age);
	}
	public void setpersonid(int personId)
	{
		this.personId = personId;
	}
	public int getpersonid()
	{
		return this.personId;
	}
	public void setfirstname(string firstName)
	{
		this.firstName = firstName;
	}
	public string getfirstname()
	{
		return this.firstName;
	}
}