#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let a = [(1, 2), (3, 4), (5, 6)];
    let (left, right): (Vec<_>, Vec<_>) = a.into_iter().unzip();
    assert_eq!(left, [1, 3, 5]);
    assert_eq!(right, [2, 4, 6]);
    let a = [(1, (2, 3)), (4, (5, 6))];
    let (x, (y, z)): (Vec<_>, (Vec<_>, Vec<_>)) = a.into_iter().unzip();
    assert_eq!(x, [1, 4]);
    assert_eq!(y, [2, 5]);
    assert_eq!(z, [3, 6]);
}