fn main() {
    // basic interpolation
    let name = "Rust";
    let version = 2024;
    let s = format!("{} {}", name, version);
    println!("{}", s);

    // positional arguments
    let s = format!("{0} is {1}, {1} is {0}", "first", "second");
    println!("{}", s);

    // named arguments
    let s = format!("{lang} is {adj}", lang = "Rust", adj = "awesome");
    println!("{}", s);

    // formatting numbers
    println!("binary: {:b}", 42);
    println!("octal: {:o}", 42);
    println!("hex: {:x}", 42);
    println!("padded: {:08}", 42);
    println!("float: {:.3}", 3.14159);
}