#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::fmt;
struct Position {
    longitude: f32,
    latitude: f32,
}
impl fmt::Display for Position {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "({}, {})", self.longitude, self.latitude)
    }
}
fn main() {
    assert_eq!(
        "(1.987, 2.983)", format!("{}", Position { longitude : 1.987, latitude : 2.983,
        }),
    );
}