public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int T = in . nextInt ( ) ;
  StringBuilder output = new StringBuilder ( ) ;
  for ( int t = 0 ;
  t < T ;
  t ++ ) {
    int N = in . nextInt ( ) ;
    long K = in . nextLong ( ) ;
    int [ ] A = new int [ N ] ;
    for ( int n = 0 ;
    n < N ;
    n ++ ) {
      A [ n ] = in . nextInt ( ) ;
    }
    op ( A ) ;
    if ( K % 2 == 0 ) {
      op ( A ) ;
    }
    for ( int a : A ) {
      output . append ( a ) . append ( ' ' ) ;
    }
    output . append ( '\n' ) ;
  }
  System . out . print ( output ) ;
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int T = in . nextInt ( ) ; StringBuilder output = new StringBuilder ( ) ; for ( int t = 0 ; t < T ; t ++ ) { int N = in . nextInt ( ) ; long K = in . nextLong ( ) ; int [ ] A = new int [ N ] ; for ( int n = 0 ; n < N ; n ++ ) { A [ n ] = in . nextInt ( ) ; } op ( A ) ; if ( K % 2 == 0 ) { op ( A ) ; } for ( int a : A ) { output . append ( a ) . append ( ' ▁ ' ) ; } output . append ( ' \n ' ) ; } System . out . print ( output ) ; }
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