#include <bits/stdc++.h>
using namespace std;
using namespace chrono;

int main() {
	auto start = system_clock::now();
	random_device rnd;
	mt19937 mt(rnd());
	int n, m;
	cin >> n >> m;
	int a[n];
	uniform_int_distribution<> rand(0, n - 1);
	for (auto &i : a) {
		cin >> i;
	}
	if (m < n) {
		int d = n - m, x = 0;
		for (int i = 0; i < m; i++) {
			x ^= a[i];
		}
		while (duration_cast<milliseconds>(system_clock::now() - start).count() < 1450) {
			for (int t = 0; t < 1 << 15; t++) {
				int i = rand(mt) % m, j = rand(mt) % d + m;
				int y = x ^ a[i] ^ a[j];
				if (x < y) {
					x = y;
					swap(a[i], a[j]);
				}
			}
		}
	}
	for (int i = 0; i < m; i++) {
		cout << a[i] << ' ';
	}
	cout << endl;
	return 0;
}