#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> PII;

const int MM = 1e9 + 7;
const double eps = 1e-8;
const int MAXN = 2e3 + 10;

int n, m;

void prework(){

}

void read(){

}

int a[MAXN][MAXN];

void solve(int casi){
//	cout << "Case #" << casi << ": ";
	cin >> n >> m;
	if (n == 1 || n == 3){
		cout << m;
		for (int i = 1; i < n; i++)
			cout << " 0";
		cout << endl;
		return ;
	}
	if (n == 2){
		cout << -1 << ' ' << m << endl;
		return ;
	}
	a[3][1] = 0;
	a[3][2] = 0;
	a[3][3] = m;
	int k = 3;
	for (int x = 4; x <= n; x++){
		k = x;
		int y = x - 1;
		vector<PII> f;
		for (int i = 1; i <= y; i++){
			f.push_back(PII(a[y][i] + 1, i));
		}
		sort(f.begin(), f.end());
		int cnt = 0, mm = x / 2;
		for (int i = 0; i < mm; i++)
			cnt += (a[x][f[i].second] = f[i].first);
		if (cnt <= m){
			a[x][x] = m - cnt;
		}
		else{
			a[y][x] = -1;
			for (int i = x + 1; i <= n; i++)
				a[y][i] = -1;
			k = y;
			break;
		}
		//for (int i = 1; i <= x; i++)
		//	cout << a[x][i] << ' '; cout << endl;
	}
	for (int i = n; i >= 2; i--)
		cout << a[k][i] << ' ';
	cout << a[k][1] << endl;
}

void printans(){

}


int main(){
//	std::ios::sync_with_stdio(false);
	prework();
	int T = 1;
//	cin>>T;
	for(int i = 1; i <= T; i++){
		read();
		solve(i);
		printans();
	}
	return 0;
}