using System;

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​

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var person1 = new Person{

            Nome = "D",

            Cognome = "M"

        };

        var person2 = new Person{

            Nome = "D",

            Cognome = "M"

        };

        Console.WriteLine(person1.GetHashCode());

        Console.WriteLine(person2.GetHashCode());

    }

    private class Person

    {

        public string Nome {get; set;}

        public string Cognome {get; set;}

    }

}