fn main() {
    println!("{} days", 31);

    println!("{0}, this is {1}. {1}, this is {0}", "Alice", "Bob");

    println!(
        "{subject} {verb} {object}",
        object = "the lazy dog",
        subject = "the quick brown fox",
        verb = "jumps over"
    );

    println!(
        "{} of {:b} people know binary, the other half doesn't",
        1, 2
    );

    println!("{number:>width$}", number = 1, width = 6);

    println!("{number:>0width$}", number = 1, width = 6);

    println!("My name is {0}, {1} {0}", "Bond", "James");

    #[allow(dead_code)]
    #[derive(Debug)]
    struct Structure(i32);

    println!("This struct `{:?}` will print...", Structure(3));

    let pi = 3.141592;
    println!("Pi is roughly {:.3}", pi);
}