package main

import "fmt"

func main() {
	var n, k int
	
	fmt.Scan(&n, &k)
	
	if n % k != 0 {
		fmt.Println(-1)
		return
	}
	a := ""
	for i := 0; i < n; i++ {
		if i > 0 {
			a += " "
		}
		if n / k < 1 {
			a += "1"
		} else {
			a += "2"
		}
	}
	fmt.Println(a)
	
}