import java.io.*;
public class Main {
	static StreamTokenizer s=new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
	static PrintWriter out=new PrintWriter(System.out);
	static long b[]=new long[100010];
	public static void main(String[]args)throws IOException
	{
		
		int t=nextint();
		while(t--!=0)
		{
			
			int n=nextint();
			long k=nextlong();
			long res=0;
			for(int i=0;i<n;i++)
			{
				b[i]=nextlong();
				res^=b[i];
			}
			if(n%2==0)
			{
				if(k%2==0)
				{
					for(int i=0;i<n;i++)
					{
						out.print(b[i]+" ");
						out.flush();
					}
				}
				else {
					for(int i=0;i<n;i++)
					{
						out.print((res^b[i])+" ");
						out.flush();
					}
					
				}
			}
			else {
				for(int i=0;i<n;i++)
				{
					out.print((res^b[i])+" ");
					out.flush();
				}
			}
			out.println();
			out.flush();
		}
		
	}
	public static int nextint()throws IOException
	{
		s.nextToken();
		return(int)s.nval;
	}
	public static long nextlong()throws IOException
	{
		s.nextToken();
		return (long) s.nval;
	}
}