public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int N = sc . nextInt ( ) ;
  int M = sc . nextInt ( ) ;
  int [ ] cdCase = new int [ N + 1 ] ;
  for ( int i = 0 ;
  i < N + 1 ;
  i ++ ) {
    cdCase [ i ] = i ;
  }
  for ( int i = 0 ;
  i < M ;
  i ++ ) {
    int disk = sc . nextInt ( ) ;
    int index = 0 ;
    for ( int j = 0 ;
    j < N + 1 ;
    j ++ ) {
      if ( cdCase [ j ] == disk ) {
        index = j ;
        break ;
      }
    }
    cdCase [ index ] = cdCase [ 0 ] ;
    cdCase [ 0 ] = disk ;
  }
  for ( int i = 1 ;
  i < N + 1 ;
  i ++ ) {
    System . out . println ( cdCase [ i ] ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int N = sc . nextInt ( ) ; int M = sc . nextInt ( ) ; int [ ] cdCase = new int [ N + 1 ] ; for ( int i = 0 ; i < N + 1 ; i ++ ) { cdCase [ i ] = i ; } for ( int i = 0 ; i < M ; i ++ ) { int disk = sc . nextInt ( ) ; int index = 0 ; for ( int j = 0 ; j < N + 1 ; j ++ ) { if ( cdCase [ j ] == disk ) { index = j ; break ; } } cdCase [ index ] = cdCase [ 0 ] ; cdCase [ 0 ] = disk ; } for ( int i = 1 ; i < N + 1 ; i ++ ) { System . out . println ( cdCase [ i ] ) ; } }
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