#include<bits/stdc++.h>
using namespace std;
using LL=long long;
using ULL=unsigned long long;
#define rep(i,n) for(int i=0; i<(n); i++)

int N;
ULL X,Y;
ULL A[200000];
vector<int> ans;

int main(){
  scanf("%d%llu%llu",&N,&X,&Y);
  rep(i,N) scanf("%llu",&A[i]);
  ans.assign(N,3);
  ULL mask=(1ull<<60)-1;
  for(int i=N-1; i>=0; i--){
    if((Y&mask)==(A[i]&mask)){ mask=0; break; }
    if(((Y|A[i])&mask)==(A[i]&mask)){ ans[i]=1; mask&=A[i]; continue; }
    if(((Y&A[i])&mask)==(A[i]&mask)){ ans[i]=2; mask&=~A[i]; continue; }
    ans={-1}; break;
  }
  if(mask) if((mask&X)!=(mask&Y)) ans={-1};
  rep(i,ans.size()){ if(i) printf(" "); printf("%d",ans[i]); } printf("\n");
  return 0;
}