public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  List < Integer > list = new ArrayList < > ( ) ;
  int N = sc . nextInt ( ) ;
  int Q = sc . nextInt ( ) ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) list . add ( 0 ) ;
  for ( int i = 0 ;
  i < Q ;
  i ++ ) {
    int L = sc . nextInt ( ) ;
    int R = sc . nextInt ( ) ;
    int T = sc . nextInt ( ) ;
    L -- ;
    R -- ;
    for ( int j = L ;
    j <= R ;
    j ++ ) list . set ( j , T ) ;
  }
  for ( Iterator it = list . iterator ( ) ;
  it . hasNext ( ) ;
  ) {
    System . out . println ( it . next ( ) ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; List < Integer > list = new ArrayList < > ( ) ; int N = sc . nextInt ( ) ; int Q = sc . nextInt ( ) ; for ( int i = 0 ; i < N ; i ++ ) list . add ( 0 ) ; for ( int i = 0 ; i < Q ; i ++ ) { int L = sc . nextInt ( ) ; int R = sc . nextInt ( ) ; int T = sc . nextInt ( ) ; L -- ; R -- ; for ( int j = L ; j <= R ; j ++ ) list . set ( j , T ) ; } for ( Iterator it = list . iterator ( ) ; it . hasNext ( ) ; ) { System . out . println ( it . next ( ) ) ; } }
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