#[derive(Debug)]
pub struct Person {
    name: String,
    age: u8,
}

impl Person {
    fn new(name: String, age: u8) -> Person {
        Person {
            name: name,
            age: age,
        }
    }

    fn say_hello(self) {
        println!("Hello from {}", self.name);
    }
}

fn main() {
    println!("Hello, world!");

    let alice = Person::new(String::from("alice"), 21);
    alice.say_hello();
}