#include <stdio.h>
#include <time.h>
#include <vector>
#include <random>
#include <algorithm>

using namespace std;

mt19937 mt(123);

// [l,r]
int randint(int l, int r) {
  return uniform_int_distribution<int>(l, r)(mt);
}

int main() {
  int n, m;
  scanf("%d %d", &n, &m);

  vector<int> a(n); 
  for (int i = 0; i < n; i++) {
    scanf("%d", &a[i]);
  }

  pair<int, vector<int>> mx;  

  clock_t start = clock();
  while (double(clock() - start) / CLOCKS_PER_SEC < 0.3) {
    vector<int> p;
    vector<bool> used(n);
    int x = 0;
    while (p.size() < m) {
      int r = randint(0, n - 1);
      if (!used[r]) {
        used[r] = true;
        p.push_back(r);
        x ^= a[r];
      }
    }
    mx = max(mx, make_pair(x, p));
  }

  for (int i = 0; i < m; i++) {
    if (i > 0) putchar(' ');
    printf("%d", a[mx.second[i]]);
  }
  puts("");
}