#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define rep2(i, x, n) for(int i = x; i <= n; i++)
#define rep3(i, x, n) for(int i = x; i >= n; i--)
#define each(e, v) for(auto &e: v)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
const int MOD = 1000000007;
//const int MOD = 998244353;
const int inf = (1<<30)-1;
const ll INF = (1LL<<60)-1;
template<typename T> bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;};
template<typename T> bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;};

struct io_setup{
    io_setup(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
    }
} io_setup;

int main(){
    int N;
    ll X, Y;
    cin >> N >> X >> Y;

    vector<ll> a(N+1);
    a[0] = X;
    rep2(i, 1, N) cin >> a[i];
    reverse(all(a));

    vector<int> ans(N+1, 3);
    ll A = Y, B = INF&~A, C = 0; //ONのビット、OFFのビット、どちらでもいいビット

    rep(i, N+1){
        if((a[i]&A) == A && (a[i]&B) == 0) break;
        if((a[i]&A) == A){
            ans[i] = 1;
            rep(j, 60){
                if((B&(1LL<<j)) && !(a[i]&(1LL<<j))){
                    B &= ~(1LL<<j), C |= (1LL<<j);
                }
            }
        }
        else if((a[i]&B) == 0){
            ans[i] = 2;
            rep(j, 60){
                if((A&(1LL<<j)) && (a[i]&(1LL<<j))){
                    A &= ~(1LL<<j), C |= (1LL<<j);
                }
            }
        }
        else{
            cout << "-1\n";
            return 0;
        }
    }

    if(ans.back() != 3) {cout << "-1\n"; return 0;}

    rep3(i, N-1, 0) cout << ans[i] << ' ';
    cout << '\n';
}