fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();

    if n % 2 == 0 {
        println!("{}", (1..=n/2).map(|i| (2*i).to_string()).collect::<Vec<_>>().join(" "));
        return;
    }
    if n < 6 {
        println!("-1");
        return;
    }
    let mut result = vec![2, 4];
    for i in 4..=n/2 {
        result.push(i*2);
    }
    result.push(6);
    result.push(3);
    println!("{}", result.iter().map(|&v| v.to_string()).collect::<Vec<_>>().join(" "));
}