using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello world");   

    }

}

​

class Person

{

    string _name;

    public string Name

    {

        get => _name;

        set => _name = value;

    }

    public Person(string name)

    {

        this._name = name;  

    }

}