#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 1000000000000000001

int main(){
	
	int N,K;
	cin>>N>>K;
	if(N==1){
		if(K==N){
			rep(j,N){
				if(j!=0)cout<<' ';
				cout<<1;
			}
			cout<<endl;
		}
		else{
			cout<<-1<<endl;
		}
	}
	else if(N%K==0){
		rep(i,N){
			if(i!=0)cout<<' ';
			if(i<(N/K))cout<<1;
			else cout<<2;
		}
		cout<<endl;
	}
	else{
		cout<<-1<<endl;
	}
	
    return 0;
}