public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int t = sc . nextInt ( ) ;
  int [ ] arr = new int [ 12 ] ;
  for ( int i = 0 ;
  i < 12 ;
  i ++ ) {
    arr [ i ] = sc . nextInt ( ) ;
  }
  Arrays . sort ( arr ) ;
  int count = 1 ;
  if ( t != 0 ) {
    int sum = arr [ 11 ] ;
    for ( int i = 10 ;
    i >= 0 ;
    i -- ) {
      if ( sum < t ) {
        count ++ ;
        sum += arr [ i ] ;
      }
      else {
        break ;
      }
    }
    System . out . println ( sum >= t ? count : - 1 ) ;
  }
  else {
    System . out . println ( 0 ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int t = sc . nextInt ( ) ; int [ ] arr = new int [ 12 ] ; for ( int i = 0 ; i < 12 ; i ++ ) { arr [ i ] = sc . nextInt ( ) ; } Arrays . sort ( arr ) ; int count = 1 ; if ( t != 0 ) { int sum = arr [ 11 ] ; for ( int i = 10 ; i >= 0 ; i -- ) { if ( sum < t ) { count ++ ; sum += arr [ i ] ; } else { break ; } } System . out . println ( sum >= t ? count : - 1 ) ; } else { System . out . println ( 0 ) ; } }
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