public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  int [ ] a = new int [ n ] ;
  int [ ] b = new int [ n ] ;
  int [ ] c = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    a [ i ] = sc . nextInt ( ) ;
  }
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    b [ i ] = sc . nextInt ( ) ;
  }
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    c [ i ] = sc . nextInt ( ) ;
  }
  sc . close ( ) ;
  Arrays . sort ( a ) ;
  Arrays . sort ( b ) ;
  Arrays . sort ( c ) ;
  long ans = 0 ;
  long [ ] cnum = new long [ n + 1 ] ;
  int pos = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    while ( c [ pos ] <= b [ i ] ) {
      pos ++ ;
      if ( pos >= n ) {
        pos = n ;
        break ;
      }
    }
    if ( pos >= n ) break ;
    cnum [ i ] = n - pos ;
  }
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    cnum [ n - i - 1 ] = cnum [ n - i ] + cnum [ n - i - 1 ] ;
  }
  pos = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    while ( b [ pos ] <= a [ i ] ) {
      pos ++ ;
      if ( pos >= n ) {
        pos = n ;
        break ;
      }
    }
    if ( pos >= n ) break ;
    ans += cnum [ pos ] ;
  }
  System . out . println ( ans ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; int [ ] a = new int [ n ] ; int [ ] b = new int [ n ] ; int [ ] c = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { a [ i ] = sc . nextInt ( ) ; } for ( int i = 0 ; i < n ; i ++ ) { b [ i ] = sc . nextInt ( ) ; } for ( int i = 0 ; i < n ; i ++ ) { c [ i ] = sc . nextInt ( ) ; } sc . close ( ) ; Arrays . sort ( a ) ; Arrays . sort ( b ) ; Arrays . sort ( c ) ; long ans = 0 ; long [ ] cnum = new long [ n + 1 ] ; int pos = 0 ; for ( int i = 0 ; i < n ; i ++ ) { while ( c [ pos ] <= b [ i ] ) { pos ++ ; if ( pos >= n ) { pos = n ; break ; } } if ( pos >= n ) break ; cnum [ i ] = n - pos ; } for ( int i = 1 ; i < n ; i ++ ) { cnum [ n - i - 1 ] = cnum [ n - i ] + cnum [ n - i - 1 ] ; } pos = 0 ; for ( int i = 0 ; i < n ; i ++ ) { while ( b [ pos ] <= a [ i ] ) { pos ++ ; if ( pos >= n ) { pos = n ; break ; } } if ( pos >= n ) break ; ans += cnum [ pos ] ; } System . out . println ( ans ) ; }
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