public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int days = sc . nextInt ( ) ;
  int bowls = sc . nextInt ( ) ;
  int plates = sc . nextInt ( ) ;
  int [ ] ar = new int [ days ] ;
  for ( int i = 0 ;
  i < days ;
  i ++ ) {
    ar [ i ] = sc . nextInt ( ) ;
  }
  int c1 = 0 ;
  int c2 = 0 ;
  for ( int i = 0 ;
  i < days ;
  i ++ ) {
    if ( ar [ i ] == 1 ) {
      if ( bowls > 0 ) {
        bowls -= 1 ;
      }
      else {
        c1 ++ ;
      }
    }
    else {
      if ( plates > 0 ) {
        plates -= 1 ;
      }
      else if ( bowls > 0 ) {
        bowls -= 1 ;
      }
      else {
        c1 ++ ;
      }
    }
  }
  System . out . println ( c1 ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int days = sc . nextInt ( ) ; int bowls = sc . nextInt ( ) ; int plates = sc . nextInt ( ) ; int [ ] ar = new int [ days ] ; for ( int i = 0 ; i < days ; i ++ ) { ar [ i ] = sc . nextInt ( ) ; } int c1 = 0 ; int c2 = 0 ; for ( int i = 0 ; i < days ; i ++ ) { if ( ar [ i ] == 1 ) { if ( bowls > 0 ) { bowls -= 1 ; } else { c1 ++ ; } } else { if ( plates > 0 ) { plates -= 1 ; } else if ( bowls > 0 ) { bowls -= 1 ; } else { c1 ++ ; } } } System . out . println ( c1 ) ; }
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