public static void main ( String [ ] args ) {
  FS in = new FS ( ) ;
  int N = in . nextInt ( ) ;
  int hand [ ] = new int [ N + 1 ] ;
  int deck [ ] = new int [ N ] ;
  int posInDeck [ ] = new int [ N + 1 ] ;
  Arrays . fill ( posInDeck , - 1 ) ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) hand [ in . nextInt ( ) ] ++ ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    deck [ i ] = in . nextInt ( ) ;
    posInDeck [ deck [ i ] ] = i ;
  }
  int res = 2 * N ;
  ;
}

public static void main ( String [ ] args ) { FS in = new FS ( ) ; int N = in . nextInt ( ) ; int hand [ ] = new int [ N + 1 ] ; int deck [ ] = new int [ N ] ; int posInDeck [ ] = new int [ N + 1 ] ; Arrays . fill ( posInDeck , - 1 ) ; for ( int i = 0 ; i < N ; i ++ ) hand [ in . nextInt ( ) ] ++ ; for ( int i = 0 ; i < N ; i ++ ) { deck [ i ] = in . nextInt ( ) ; posInDeck [ deck [ i ] ] = i ; } int res = 2 * N ; ; }
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