fn main() {
    let mut s = String::from("howdy");

    change_me(&mut s);

    let size = get_str_size(&s);
    println!("Size of s is {size}");
}

fn get_str_size(s: &String) -> usize {
    return s.len();
}

fn change_me(s: &mut String) {
    s.push_str(", brilha no curintia");
}