fn main() {
    let greetings = ["Hello", "Hola", "Bonjour",
                     "Ciao"];

    let mut x: i32 = 1;
    x = 7;

    for (num, greeting) in greetings.iter().enumerate() {
        print!("{} : ", greeting);
        match num {
            0 =>  println!("Hello! X equals {}!",x),
            1 =>  println!("¡Hola! X es igual a {}",x),
            2 =>  println!("Bonjour! X est égal à {}",x),
            3 =>  println!("Ciao! X è uguale a {}", x),
            _ =>  {},
        }
    }
}