#include<bits/stdc++.h>

#define ll long long
#define Add_Speed ios_base::sync_with_stdio(0);cin.tie(NULL);
#define pb push_back
#define mp make_pair
#define f first
#define sz size()
#define s second
#define pii pair<int, int>
#define all(s) s.begin(), s.end()
#define file(s) freopen(s".in","r",stdin); freopen(s".out","w",stdout);
#define inf INT_MAX
#define int ll

using namespace std;

const int maxn = 1e5 + 100;
const int mod = (int)1e9 + 7;
const int maxlog = (int)20;
const int P = mod;

main () {
  Add_Speed;
  file("B");
  int tt;
  cin >> tt;

  while(tt--){
    int n;
    ll a1;
    cin >> n >> a1;
    ll val = n * (1ll << (n - 1)) + 1;
    //cout << (1ll << (n - 1)) << endl;
    if(n == 1){
      cout << a1 << endl;
      continue;
    }
    if(a1 % val != 0){
      cout << "-1\n";
      continue;
    }
    ll dif;
    if(n == 2) dif = 4;
    if(n == 3) dif = 6;
    else dif = n * 1ll * (1ll << (n - 2));
    dif *= a1 / val;
    cout << a1 << " ";
    for(int i = 2; i <= n; i++){
      ll x = a1, ans = x - dif;
      cout << ans << " ";
      a1 = ans;
      dif /= 2;
    }
    cout << endl;
  }
}