use proconio::input;
use itertools::Itertools;

fn main(){
    input!{
        n: usize,
        k: usize,
    }

    if (n == 1 && k > 1) || n%k != 0{
        println!("{}", -1);
        return;
    }

    let mut ans = Vec::<usize>::new();
    for i in 0..n{
        ans.push(if i < n/k{1} else{2});
    }

    println!("{}", ans.iter().join(" "));
}