#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::time::Duration;
fn main() {
    assert_eq!(
        Duration::new(100, 0).abs_diff(Duration::new(80, 0)), Duration::new(20, 0)
    );
    assert_eq!(
        Duration::new(100, 400_000_000).abs_diff(Duration::new(110, 0)), Duration::new(9,
        600_000_000)
    );
}