using System;
using System.Collections.Generic;
using System.Linq;
using static System.Console;

class Program
{
    static void Main()
    {
        var NM = ReadLine().Split().Select(int.Parse).ToArray();
        var N = NM[0];
        var M = NM[1];
        var A = ReadLine().Split().Select(int.Parse).ToArray();
        var u = new int[M];
        var r = new XorShift();
        var res = A.Take(M).Aggregate((x, y) => x ^ y);
        for (int i = 0; i < M; i++)
        {
            u[i] = i;
        }
        while (res != 0xFFFFF)
        {
            var a = r.Next(M);
            var b = r.Next(N);
            if (!u.Contains(b))
            {
                res ^= A[u[a]];
                res ^= A[b];
                u[a] = b;
            }
        }
        for (int i = 0; i < M; i++)
        {
            Write($"{A[u[i]]} ");
        }
        WriteLine();
    }
}

public class XorShift
{
    uint x = 123456789;
    uint y = 362436069;
    uint z = 521288629;
    uint w = 88675123;

    public XorShift()
    {
        var t = (uint)Environment.TickCount;
        x ^= t;
        y ^= Rotate(t, 17);
        z ^= Rotate(t, 31);
        w ^= Rotate(t, 18);
    }

    uint Rotate(uint u, int n) => (u << n) + (u >> 32 - n);

    public int Next()// [0, int.MaxValue)                  
    {
        var t = x ^ x << 11;
        x = y; y = z; z = w;
        t = w = w ^ w >> 19 ^ t ^ t >> 8;
        if (t > int.MaxValue) t = ~t;
        return (int)(t == int.MaxValue ? --t : t);
    }

    public int Next(int maxValue) => (int)(NextDouble() * maxValue);// [0, maxValue)

    public double NextDouble() => (double)Next() / int.MaxValue;// [0.0, 1.0)
}