#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;

unsigned int xor128(){
  static unsigned int x=123456789, y=362436069, z=521288629, w=88675123;
  unsigned int t;
  t=(x^(x<<11));
  x=y; y=z; z=w;
  return w=(w^(w>>19))^(t^(t>>8));
}

vector<int> solve(const vector<int>& v, int N, int M){
  bitset<100005> w;
  int score = 0;
  rep(i,M){
    w[i] = 1;
    score ^= v[i];
  }

  rep(t,1000){
    /*
    for(int i=21; i>=0; i--){
      if((score>>i)&1) cout << 1;
      else cout << 0;
    }
    cout << endl;
    */
    int br = xor128()%22;
    int th = 1<<(br+1);

    vector<int> p1, p0;
    vector<int> q1, q0;
    rep(i,N){
      if(v[i]>=th) continue;
      if(w[i]){
        if((v[i]>>br)&1) p1.push_back(i);
        else p0.push_back(i);
      }else{
        if((v[i]>>br)&1) q1.push_back(i);
        else q0.push_back(i);
      }
    }
    
    if((score>>br)&1){
      if(p1.size()>1 && q0.size()>1){
        int t_score = score;
        t_score ^= v[p1[0]];
        t_score ^= v[p1[1]];
        t_score ^= v[q0[0]];
        t_score ^= v[q0[1]];
        if(score <= t_score){
          w[p1[0]] = 0;
          w[p1[1]] = 0;
          w[q0[0]] = 1;
          w[q0[1]] = 1;
          score ^= v[p1[0]];
          score ^= v[p1[1]];
          score ^= v[q0[0]];
          score ^= v[q0[1]];
        }
      }  
    }else{
      if(p1.size()>0 && q0.size()>0){
        w[p1[0]] = 0;
        w[q0[0]] = 1;
        score ^= v[p1[0]];
        score ^= v[q0[0]];
      }
      else if(p0.size()>0 && q1.size()>0){
        w[p0[0]] = 0;
        w[q1[0]] = 1;
        score ^= v[p0[0]];
        score ^= v[q1[0]];
      }
    }
  }

  cerr << score << endl;
  vector<int> ret;
  rep(i,w.size()){
    if(w[i]) ret.push_back(v[i]);
  }
  return ret;
}


int main(){
  int N, M;
  cin >> N >> M;

  vector<int> v;
  rep(i,N){
#ifdef LOCAL
    v.push_back(1+i);
#else
    int a;
    cin >> a;
    v.push_back(a);
#endif
  }
  sort(ALLOF(v));


  vector<int> ret = solve(v, N, M);

#ifndef LOCAL
  rep(i,ret.size()){
    if(i>0) cout << " ";
    cout << ret[i];
  }
  cout << endl;
#endif
  return 0;
}