public static void main ( String [ ] args ) throws IOException {
  BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  String [ ] strArray = br . readLine ( ) . split ( " " ) ;
  int caseNum = Integer . parseInt ( strArray [ 0 ] ) ;
  int listenedCdNum = Integer . parseInt ( strArray [ 1 ] ) ;
  int listenDisk = 0 ;
  int [ ] cdCase = new int [ caseNum ] ;
  for ( int i = 1 ;
  i <= caseNum ;
  i ++ ) {
    cdCase [ i - 1 ] = i ;
  }
  for ( int i = 0 ;
  i < listenedCdNum ;
  i ++ ) {
    int disk = Integer . parseInt ( br . readLine ( ) ) ;
    for ( int j = 0 ;
    j < caseNum ;
    j ++ ) {
      if ( cdCase [ j ] == disk ) {
        cdCase [ j ] = listenDisk ;
        listenDisk = disk ;
      }
    }
  }
  for ( int diskNum : cdCase ) {
    System . out . println ( diskNum ) ;
  }
}

public static void main ( String [ ] args ) throws IOException { BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ; String [ ] strArray = br . readLine ( ) . split ( " ▁ " ) ; int caseNum = Integer . parseInt ( strArray [ 0 ] ) ; int listenedCdNum = Integer . parseInt ( strArray [ 1 ] ) ; int listenDisk = 0 ; int [ ] cdCase = new int [ caseNum ] ; for ( int i = 1 ; i <= caseNum ; i ++ ) { cdCase [ i - 1 ] = i ; } for ( int i = 0 ; i < listenedCdNum ; i ++ ) { int disk = Integer . parseInt ( br . readLine ( ) ) ; for ( int j = 0 ; j < caseNum ; j ++ ) { if ( cdCase [ j ] == disk ) { cdCase [ j ] = listenDisk ; listenDisk = disk ; } } } for ( int diskNum : cdCase ) { System . out . println ( diskNum ) ; } }
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