#include<deque>
#include<queue>
#include<vector>
#include<algorithm>
#include<iostream>
#include<set>
#include<cmath>
#include<tuple>
#include<string>
#include<chrono>
#include<functional>
#include<iterator>
#include<random>
#include<unordered_set>
#include<unordered_map>
#include<array>
#include<map>
#include<bitset>
#include<iomanip>
#include<list>
using namespace std;
typedef long long int llint;
typedef long double lldo;
#define mp make_pair
#define mt make_tuple
#define pub push_back
#define puf push_front
#define pob pop_back
#define pof pop_front
#define fir first
#define sec second
#define res resize
#define ins insert
#define era erase
#define RE return 0
//ios::sync_with_stdio(false);
//std::cin.tie(0);
//<< setprecision(20)
const int mod=1e9+7;
const int big=1e9+100;
const long double pai=3.141592653589793238462643383279502884197;
const long double ena=2.71828182845904523536;
const long double eps=1e-7;
template <class T,class U>void mineq(T& a,U b){if(a>b){a=b;}}
template <class T,class U>void maxeq(T& a,U b){if(a<b){a=b;}}
template <class T> void soun(T& ar)
{sort(ar.begin(),ar.end());ar.erase(unique(ar.begin(),ar.end()),ar.end());}
int main(void){
	int i,j,n,m;cin>>n>>m;
	array<int,1001> ans={0};
	for(i=0;i<n;i++){
		int nko=m;
		int kuba[10]={0};//配るべき数
		for(j=0;j<i;j++){
			if(ans[j]+1<10){kuba[ans[j]+1]++;}
		}
		int yote[10]={0};
		int hyo=(i+1)/2;//これだけ必要
		for(j=0;j<10;j++){
			yote[j]=min(kuba[j],hyo);
			nko-=j*min(kuba[j],hyo);
			hyo-=min(kuba[j],hyo);
		}
		if(nko<0||hyo>0){ans[i]=-1;continue;}
		for(j=0;j<i;j++){
			if(ans[j]+1<10&&yote[ans[j]+1]>0){yote[ans[j]+1]--;ans[j]++;}
			else{ans[j]=0;}
		}
		ans[i]=nko;
	}
	for(i=n-1;i>=0;i--){cout<<ans[i]<<" ";}cout<<endl;
}