#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    assert_eq!([1].iter().lt([1].iter()), false);
    assert_eq!([1].iter().lt([1, 2].iter()), true);
    assert_eq!([1, 2].iter().lt([1].iter()), false);
    assert_eq!([1, 2].iter().lt([1, 2].iter()), false);
}