#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(iter_array_chunks)]
fn main() {
    let data = [1, 1, 2, -2, 6, 0, 3, 1];
    for [x, y, z] in data.iter().array_chunks() {
        assert_eq!(x + y + z, 4);
    }
}