public static void Main()
Person miguel = new Person{Name = "Miguel"};
Person francine = new Person{Name = "Francine"};
if (miguel.Marry(francine) && francine.Marry(miguel))
Console.WriteLine("43 6F 6E 67 72 61 74 75 6C 61 74 69 6F" +
"6E 73 21 20 42 65 73 74 20 77 69 73 68" +
"65 73 20 66 72 6F 6D 20 4D 69 63 68 61" +
"65 6C 2C 20 45 6D 6D 61 20 61 6E 64 20" +
"46 72 61 6E 63 65 73 63 61 21");
bool Marry(IPerson person);
public class Person : IPerson
public string Name {get; set;}
public bool Marry(IPerson person)
if (this.Name == "Miguel" || this.Name == "Francine")