using System;

public class Program

{

    public static void Main()

    {

        var fakeEnum = (MyEnum) 3;

        Console.WriteLine(fakeEnum.GetType() == typeof(MyEnum));

        Console.WriteLine(fakeEnum);

        Console.WriteLine(Enum.IsDefined(typeof(MyEnum), fakeEnum));

        var realEnum = (MyEnum) 2;

        Console.WriteLine(realEnum.GetType() == typeof(MyEnum));

        Console.WriteLine(realEnum);

        Console.WriteLine(Enum.IsDefined(typeof(MyEnum), realEnum));

    }

    public enum MyEnum { a, b, c };

}