#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::hash::{Hash, Hasher};
struct Person {
    id: u32,
    name: String,
    phone: u64,
}
impl Hash for Person {
    fn hash<H: Hasher>(&self, state: &mut H) {
        self.id.hash(state);
        self.phone.hash(state);
    }
}
fn main() {}