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 R = in . nextInt ( ) ;
    int C = in . nextInt ( ) ;
    int [ ] [ ] rows = new int [ R ] [ ] ;
    int [ ] rowIndex = new int [ R * C + 1 ] ;
    for ( int r = 0 ;
    r < R ;
    r ++ ) {
      int [ ] row = new int [ C ] ;
      for ( int c = 0 ;
      c < C ;
      c ++ ) {
        int a = in . nextInt ( ) ;
        row [ c ] = a ;
        rowIndex [ a ] = r ;
      }
      rows [ r ] = row ;
    }
    for ( int c = 0 ;
    c < C ;
    c ++ ) {
      for ( int r = 0 ;
      r < R ;
      r ++ ) {
        int a = in . nextInt ( ) ;
        if ( c == 0 ) {
          for ( int elem : rows [ rowIndex [ a ] ] ) {
            output . append ( elem ) . 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 R = in . nextInt ( ) ; int C = in . nextInt ( ) ; int [ ] [ ] rows = new int [ R ] [ ] ; int [ ] rowIndex = new int [ R * C + 1 ] ; for ( int r = 0 ; r < R ; r ++ ) { int [ ] row = new int [ C ] ; for ( int c = 0 ; c < C ; c ++ ) { int a = in . nextInt ( ) ; row [ c ] = a ; rowIndex [ a ] = r ; } rows [ r ] = row ; } for ( int c = 0 ; c < C ; c ++ ) { for ( int r = 0 ; r < R ; r ++ ) { int a = in . nextInt ( ) ; if ( c == 0 ) { for ( int elem : rows [ rowIndex [ a ] ] ) { output . append ( elem ) . append ( ' ▁ ' ) ; } output . append ( ' \n ' ) ; } } } } System . out . print ( output ) ; }
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