using System;

public class Program

{

    public static void Main()

    {

        Foo(0, "Literal zero");

        Foo(Zero, "Constant zero");

        Foo(ZeroRO, "Static zero");

        int i = 0;

        Foo(i, "Variable zero");

        Foo((object)0, "Boxed zero");

    }

    const int Zero = 0;

    static readonly int ZeroRO = 0;

    enum TestEnum

    {

        Foo,

        Bar,

    }

    static void Foo(TestEnum bar, string message)

    {

        Console.WriteLine("{1}> Enum: {0}", bar, message);

    }

    static void Foo(object value, string message)

    {

        Console.WriteLine("{1}> Value: {0}", value, message);

    }

}